"i started on sertraline at 50mg where it made me feel very bad for the first few days, i fainted, felt sick and could not do a thing i felt so depressed. gradually the side effects wore off apart from dry mouth and needing to pee at night but then the doctor increased it to 100mg because i felt the exact same as before i took the tablets and now i still get stomach pain everyday and feel awful, the side effects just aren&#039;t going away and i want off them now."