University sick note

I've just been to see my doctor regarding a sick note however he said he thinks I'm claiming falsely for extension, I have been to him before and he gave me a letter and medication as I was expirenceing anxiety for the first time and was really scared . The medication however did not go well for me as because of my asthma so I stopped it and told him I'm dealing with it myself, for the past 6 month I ve had ups and down, not being able to sleep, getting sick more often making very hard to go uni and keep up with my studies, as assigmnenta are due I need a letter to extend my deadline but he told me he doesnt belive me as I've not been coming in but I preferred to deal with it myself, however he gave me a letter saying that I've been told by the by the patient he's been getting sick a lot and getting symptoms is that enough for my extension

I wouldnt be surprised if they say no.
From the doctors point of view you have ignored their advice and only returned when you wanted an extension. he has no knowledge and cannot verify your condition during those six months. he is entitled to say what he has. Its your own behaviour which has created the situation. You cant get a doctor to confirm your condition if they havent seen you. Did you seek help from anywhere else such as uni counselling services?
The reason the GP is useful is because they are independent professional. You are asking him to confirm something he hasnt seen.,

No I'm not the type to talk much about it, looks like you have to be make it he heard evreywhere to seem as if your not lying, I did go doctors but all they recommend is drugs which I didn't want to take, also he never told me to re book appointment and do say try to be positive, ive been trying the last six month

And no haven't made an appointment with my uni yet