my friend takes zoloft and has been takin it for years and i waz wondering could some of the physical issues be a side effect from it like hard to breath, chest pains, and he will just get tired out of nowhere sometimes and than stay up all night but either way when he wakes up he feels really bad cant hardly breath sharp pains in his body and he just went and his blood work came out good thats why im courious as to if its the zoloft and he has 2 young boys so can anyone please help me ???