Working at Boots and selling OTC medicines, I know that you can take the standard painkillers (e.g. aspirin, ibuoprofen, paracetamol)
as long as you only take the stated dose. If you take any more then you're going to put your liver/stomach under a lot of strain. So yes, take 2 ibuoprofen every 4 hours but nothing more.
The painkillers that the doctors prescribe probably won't be okay to take with alcohol, thats probably one of the reasons why it has to be prescribed. From people I know that take them, they say it helps, but some of them have said they get side effects like nausea. You shouldn't feel embarassed about period pains at all, the doctors (even me working at Boots!) have heard so much worse. Besides, every single girl has a period lols. Look forward to Paps!
I've been on the pill for 3 1/2 years now, and it's done wonders for my heavy bleeding and period pains (I'd be curled up for like 3 days in agony...!), however when you first take the pill it can make you bleed on and off for months before it settles. There's only a very small chance you won't have any irregular bleeding whatsoever - I had about 3 periods in my 1st month lol. It was great...!
When you've been on it for a long time, however, it can do wonders for the pain and the heaviest. So, perhaps don't do this for Freshers but consider it for the near future? Seriously just go have a chat with your doctor
.
Btw, have you ever tried Feminax? It has a painkiller in it caused naproxen which is used for period pains. However you cannot drink alcohol whilst taking it, so consider whether you'll be able to take that during Freshers or not. If you're willing to give up a few nights not drinking to try to help the pain, just go to a pharmacy and it'll be behind the counter. If you're on any other medication though, check with the pharmacist you can take naproxen.
Good luck!