acute hip pian.

I am a 35 year old male and worked in the bilding trade for 10 years plus. I am fairly fit and healthy. Eat good food and keep very active although i do not excercise. For about two years or so i have been getting a pain in my hip joint. it feels like someone is stabbing a knife in my socket. it does bring tears to my eyes and is extremly uncomfortable. I went to see my doctor and he sent me for an x-ray, the results showed nothing out the norm. I wouldnt let him give me ibruprofen as i am soon to donate my kidney to my son, so i was left with paracetamol. The pain is getting worse and i dont know what to do about it. I struggle to get in and out of car, up and downsatirs etc. By the end of the evening the pain spreads to my whole leg. it is a long dull pain in my leg and my hip joint is even more painfull. I cant cope much more it is stopping me from being able. I have to walk with a limp. i would understand if i was 70 or over but im not and i cant go on like this for the rest of my life. please help.