Hi, I have been on sertraline 75mg for nearly 18 months. Ive been struggling lately, feel like Im nearing a mental breakdown. Ive been signed off work for three months and the GP said to up the sertraline to 100mg. I took the first higher dose last night and feel like shite today.... Is this normal? I have never had any side effects from it before. When I first took it I also took the anti-anxiety one Pro something, and that spaced me out big time so I stopped that after a week and never felt anything with just the sertraline. I mean I think it has worked to lift my mood, and I sleep better generally, and I look forward to taking it every evening (! Is that weird?!) but I have never felt this whooooozy, drowsey, dozy, feeling with a splitting ache in my temple every now and again. Is this normal? I did cry quiet a lot on the GP so think my puffy eyes are because of that. I just feel weird. Is this going to calm down? How long does it take? Any way through it? I feel like going to bed and sleeping but have children to deal with, and one is off sick today too. URGH.