Jennita

The heart rate is a common side effect. AD's reve up the nervous system...serotonin is defined as an excitatory neurotransmitter. The leg tapping sounds like another side effect of AD's called akathisia, which can be mild or severe depending. Here's a definition I found on it:

Akathisia is a neurologically driven agitation ranging from mild leg tapping, feeling "caffeinated" to severe panic, an extreme manic state and hyper-sensitivity of the nervous system. Symptoms: motor restlessness and specifically, a feeling of muscular quivering; one of the possible complications of treatment with the phenothiazines. Often, the symptoms is of such intensity that it becomes impossible for the patients to sit still day or night, and which is described by them as more difficult to endure than any of the symptoms for which they had been originally treated. Acquaintance with this symptom of akathisia, which often persists for a considerable time after the drug has been withdrawn, is important because it is sometimes mistaken for an agitated depression and wrongly treated.