Pretty much repeating what everyone else said: it's very individual.

I did Zoloft for a while, and had the same reaction taking it in the morning. Switching to taking it with supper helped a great deal, especially helping me get to sleep at night. Switching the time also helped the "hamsterbraining" where my brain kept going like a hamster on a wheel all night.

Definitely keep in touch with your doctor about these symptoms! *hugs* and good luck!