never felt so crap!!

not been feeling good at all.
my doctor has put me back on my anti depressants. this time upped the dose to 20mg of citalopram. and i feel awful. i feel dazed and confused, like im not in my own body. in and out of sleep. dizziness, nausea, cant eat. have no feeling towards anyone and cant cope with my daughter, have no enthusiasum to do anything at all. and have even felt suicidal. i have hit an all time low. and right now i see no way out.
i cant bare to be alone with my daughter and im constantly bursting into tears.
have been on a few forums and apparently these are common side effects to these tablets.