I work at mcdonalds in the back making the burgers and my co worker hooked me up with mass gainer powder which i mix in with milk. he said it got him bigger. I am only 134 pounds and 6 foot tall so i am like a stick. I started this weight gainer when i go into work and i was cooking up the burgers and had to ask my manager to run to the bathroom. this has gone for 5 days in a row. am i just reacting bad?