Chronic Headache with loss of personality

[BooBoo88]

I am a 20 year old male with no history of headaches. For the last 12 months I have been suffering from chronic headaches. For the first couple of weeks or so it was on and off and felt like my head was going to explode but would only last an hour or two. After then it has been pretty much constant dull ache on the top and the sides of my head. I have also seemed to have lost my personality and sense of humour. This has led me to not got out socially anymore as I find it very hard to socialize with people and have not seen all of my friends in months which has led me to become very depressed. I am currently on 150 mg of amitriptyline at the moment which I have been taken for the last couple of months with no results. There was one break in my spell of headaches for about a week when i first took amitriptyline last summer. I was only on about 40-50 mg and I was headache free. But I foolishly got drunk one night on holiday and the headaches were back and the amitriptyline has never worked ever since. I have been referred to several Neurologist who have tried me on Topamax and Nortriptyline which both have had no affect. I was just wondering if anyone has ever come across anything like this before? Any help would very grateful.