M 29 years old single guy with out any wrong habits. I have very weak strength so in order to have good heath joined gym hired PT as well. Frankly to be honest good trainer I got no suggestion for any drugs or powder stuff all natural foods. My difficulties is stamina and also when I lift weight or dumbles hands get shiver. When checked with trainer he said it's normal but do you can get suggestion from good physician. Please help too know how can I get rid of this difficulties and be strong even forearms are weak please help.