Hi Brian... Welcome to Anxiety Zone...
I started on Citalopram (Celexa) some 10 weeks ago, and will be glad to help you with any of your questions. First, how many mg have you started off with?
Anti-depressants, like Citalopram, don't work like other medications you are familiar with. When you take an aspirin for a headache, you expect relief in 30 to 60 minutes. Antidepressants work by stimulating the growth of new brain cells and the connections between cells in the hippocampas regions of the brain. This helps to reverse the damage caused by the exposure of chronic stress hormones, such as cortisol. This takes time. One will usually see degrees of improvement between 3 and 12 weeks on a therapeutic dose of an anti-depressant.
Also Brian, when first starting on an anti-depressant, there is an immediate increase in serotonin. This oftentimes causes side effects such as the ones you experienced this morning. My side effects included increased anxiety, hot and cold sensations, and sweating. Side effects tend to diminish rapidly after about 2 weeks. They may reappear each time the dose of an anti-depressant is increased, but this is usually short lived.
What you are experiencing is perfectly normal. Do let me know how many mg you are taking.
The very best to you, Brian!... Chuck