Debbie,
It is unfortunate that even though you found Paxil helpful for your anxiety, it has caused sexual dysfunction and weight gain. The abrupt discontinuation of Paxil may be associated with dizziness, paresthesias, irritability, etc. To decrease the risk of this "discontinuation syndrome", which can occur with other medications, it is often advised that doses should be decreased slowly, e.g. by 10 mg each week until 10 mg a day is reached, then taking 5 mg a day for another week before stopping. This is a very conservative approach, as many people discontinue the medication at 10 or 20 mg without problems. Many people also start the Serzone as the Paxil is tapered, to avoid recurrence of anxiety. You may want to request medication follow-up with a psychiatrist who is familiar with psychotropic medications.