<s>[INST] Last year i had viral fever, and doctor gave me medicines where my bed became wet and after having medicine for 5 days, all my energy went away and i started feeling weak and my whole body pains if i do even small amt of work, I am tired easily, i am 44 years old and my weight is 72 kgs, so even going to gymn used to make me feel as if somebody has beaten me up, now after one year also i feel the same nerve pain and weaknessplease suggest, i will bless the person who cures me [/INST] Hello, I appreciate your concern for your health. Your Current problem has nothing to do with your past viral fever. With your narrations your weight seems to be in a good range, but still you are feeling weakness.  One important thing is after visiting gym or exertion, you feel weak and exhausted. My advice is please check your Hemoglobin (Hb) level and Vitamin B12 Level. Due to low hemoglobin, your blood's  oxygen carrying capacity is reduced and that's why you feel weak and exhausted. According to your lab reports you may take iron, folic acid and Vitamin B12 supplements.Meanwhile drink lots of water, eat fruits and fruits juices, eat green leafy vegetable, avoid junk foods and carbonated drinks. This will supplement your natural vitamin and mineral store. </s>