I was taking medicine since last one month and that too antibiotics urine burn and typhoid ,later I found typhoid was not there but till then have taken antibiotics for 8 days pyraxin 500 ,but from last three days I am feeling very weak, sleepy all the time with heavy head, I am getting tired without doing anything, I have done urine test, stool test, typhoid,thyroid, LFT,CBC ultrasound all tests are normal then why I am feeling weakness and sleepiness with heavy head, and also I feel very much gas, I am taking energy drink, protein powder, revital,tonic, then also I am feeling weakness, please suggest me what to do, I consulted many doctors they are saying nothing wrong is going in my body? Then what should I do please suggest?