Muscle cramps

[Jordj]

I'm am a very fit 20 year old male. I work out a lot I do I lot of running and I eat fairly healthy. However I play football/ soccer (I'm from England) and a game of football is 90 minutes long and I can never last the full 90 minutes because I get server muscle cramps around 70 minutes. I've had blood test and all is healthy. I get very frustrated because people I play with, drink, smoke and do drugs and don't get anything like I do. I have had it since I was 15. I have tried eating certain things, I've tried tablets, I've tried stretching I'm basically tried everything I could possibly find on google. Could there be any other reason why I am experiencing these cramps? The cramps are so serve when they occur and can make me feel as if I'm going to be sick.

[justacaringperson]

Cramps can be due to dehydration. Try to drink plenty of water than normally since you are very active in sport, that mean you sweat a lot and tend to be more dehydrated and required more fluid intake than regular people does. Regular people should drink 8 glasses of 8 ounce of water. You probably need 10 glasses or more, it depend on how active you are or how much sport you will be participate on that day.  

[Jordj]

Thank you for your response. I have tried drinking lots and lots of water and I usually drink a lot in any case. I've tried sports drinks I seem to have tried everything. My doctor told me 'it's just one of those things' which isn't much help at all. I have heard posture or running technique could be a cause? Would it be worth seeing a sports therapist?