Thanks for using the forum. I am happy to address your questions, and my answer will be based on the information you provided here. Please make sure you recognize that this forum is for educational purposes only, and it does not substitute for a formal office visit with a doctor.
Without the ability to examine and obtain a history, I can not tell you what the exact cause of the symptoms is. However I will try to provide you with some useful information.
Twitches in the majority of cases are benign meaning they have no consequence and do not cause serious damage or are resulting from serious damage. The twitches can occur focally (one location) or generalized (many locations). Twitches can be related to anxiety/stress, caffeine, and often occur post exercise or muscular over-use. Another type of twitching, which is normal, is called a hypnic jerk. It occurs as we are falling asleep. Again it is exacerbated by stress or caffeine. For these symptoms, the best treatment is to reduce the caffeine intake and/or reduce the stress. If the twitches are bothersome or disabling, medical treatment may be necessary. This will need to be at the discretion of your physician.
If you are concerned about your medications, you should continue to address them with your psychiatrists. However, as I mentioned earlier, anxiety can cause many of the symptoms you describe.
Thank you for this opportunity to answer your questions, I hope you find the information I have provided useful, good luck.
I started having myoclonic jerks about 5 years ago, you need to see a neurologist really to find the cause as it may not be anxiety or antidepressants that have caused it. It more than likely is the cause but to be on the safe side get checked out. You need to have MRI of brain and spine, EEG to see if it could be epilepsy and blood tests.
I am taking venlafaxine and have been for over 10 years now, they thought that might be the cause of mine so I stopped taking them for a few months but there was no change in the myoclonus. I have 2 forms, I have spinal myoclonus and startle/reflex myoclonus I've taken clonazepam for it, that turned me into a zombie, I've taken keppra but that didn't suit me and at the moment I am trying pregabalin to see if that helps.
They have been unable to find a cause for mine so in the meantime I have started a group on facebook called Spinal Myoclonus to find others in the same situation, we are a small group and give support and advice...feel free to join us.
Suz