Weakness in muscles and cramp in fingers

I am 26 years old. I feel body wide weakness in muscles . It started with numbness in fingers and feet, later tingling in fingers and bodywide twitching and excessive urine pass a few years ago when I used to do exercise in a Gym. Tingling and twitching is not there now. Now I feel weakness in muscles, a little cramp in fingers and urine pass is more than normal.Please advise.