Citalopram 10mg side effects

Hi started citalopram 10mg 10 days ago, around day 6 started to feel cold in legs and arms and muscle aches and muscle twitches now and then when relaxing had the random muscle twitches before starting the medication

I suffer from health anxiety, so these new sensation of feeling cold and muscle aches peak my health anxiety so just wanted to know is this normal.

I wake up with more anxiety and nausea and take it 9am every morning, am I best to switch to take it on a night instead.

As with health anxiety I worry its serotonin syndrome but I think that’s my health anxiety kicking off as I don’t get raising heart or confusion.

Are the cold sensation normal, and should I take it on a evening