Is it a mental illness or am I just a drama queen/king?

We all have our moments!. I wouldn't stress about it or consider it competition sometimes you have to go with the flow - at other times
defend the world from impending doom. Well not really the latter part but I'm sure you catch my drift. You can't compare people by academic grades, if she does that is her downfall, there has to be more to it [him] than that.

I've started to. The hierarchy/competition thing is going to probably take a good therapist, because as I said elsewhere, I've been in competition with my older brother (thus my peers, thus the world) since I was a toddler. And I'm a sore loser

…she told me many times that she's unhappy, but it's the way it is. In February (something like our third breakup talk?!) she said she's 'sorry I could only half-love you' because she was so busy. It was full days of lectures through to committee meetings, she put the time in for sure.
I don't know whether she likes it. She's not talking to me at this moment, I've blocked her number because I should really be focusing on my finals revision, but I' yet to block her on Facebook (which is where I saw her post this note to the society)

You've also got to understand how hard it is for her too. Displeasing your parents is majorly wrong in our culture. There are next to no exceptions for that. And her parents certainly not oppressing her. It's been in our culture for a long time, to study hard and please your parents. This doesnt change to accomodate relationships that amount to nothing and drinking culture. She really may want to have a proper relationship with you, but the effort of coming up with an excuse to tell your parents, having to break it to your parents that you're dating a white boy etc. It's not easy for her.

I can accept that; but then why did she need to cut contact? We tried being friends and she said something like 'I miss you when you're gone so much but it's no longer the same when I'm with you' and she tried to explain the culture, . Unfortunately I'm still 30% convinced she's crushing on another guy.
It hurts because she lives literally 15 minutes away, and not once over Easter did she ask to meet up. She texted me once, asking how my pregnant sister was, and when I replied she didn't respond. Which means she either doesn't want to have anything to do with me now, or is really under lock and key.

It's the not being friends or in contact at all part which I find so hard to understand.

She sounds like a rude, uppity little bitch who isn't worth you blubbering about.

How much do you value your masculinity? Because honestly (i'm not here to hurt your feelings) it's going down every time you obsess over an ex, in public or privately.

Hang on, where did the 'rude, uppity bitch' comment come from? I thought you said try to sympathise with her situation
Yeah, I realise that...

After that post it seemed like she made a conscious effort to get away from you even though you were offering a friendship.

I don't have much sympathy for her after you last post. She just doesn't seem like a very nice girl.

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No really
I'm bored of saying the details which are posted all over TSR of my problems but I am frustratingly on edge most if not all of the time and without trying to be. It hasn't rendered me incapable of functioning, but it does make things which should be very easy sometimes hard to do. If we throw in big doses of caffeine and/or alcohol things get messy in my head.
When I can't sleep it pisses me off. Sometimes I can't get it up as a result, and I'm embarrassed. Etc.

But everyone is stressed and still gets on with things. So am I just too sensitive and God forbid, melodramatic?

Could it be anxiety instead of stress? they're often confused.. just check it out

I haven't read your threads (or if I have, I can't link them to you) but it sounds like you should go see a doctor. Anything that is making you stressed is not good. Whether you're more sensitive to it than others doesn't really matter; the fact is that clearly you are unhappy and it's something you should seek help about. At worst, your doctor will give you friendly advice to buck your ideas up; at best, she/he will point you in the right direction for professional help.

Anxiety disorder, diagnosed, in treatment. Finding out my ex is less of a loser than me (because rep for a big uni society) ain't helping! Yeah, I've been seeing the university counsellor regularly, and we're considering sending me for more CBT/DBT to get to the root of my bigger irrational thoughts and behaviours:

Sounds like a grand idea to me. With a structured therapy you may have a better chance at challenging your current way of thinking, which is clearly not particularly helpful to you.

Your ex may well be better then you at many things. She may be better academically, more adapted socially. More driven to succeed. Whether that makes her a better person on a whole is open to debate. What I find more interesting is why do you feel a need to compare yourself with her. There is no need to enter this competition. You are both different people with unique strengths and weaknesses. End of. There is no need to establish who is 'better'. I'm guessing it's all the part of your current obsession with social hierarchy so it may not be that easy to drop but maybe that's where CBT can help you.