My doctors have ran the test you have suggested, and they have ruled out MG.
My sexual dysfunction and tremor, in my opinion, is not due to stress from my medical problems. When I get a tremor in my hand, it is when I am reaching for an object, or putting on make-up, playing guitar, etc..This is when the tremor happens.
My sexual dysfunction consist of, lack of sensation, or less intensity when having the big "O". This has in turn, given me a lack of interest, but I still make love to my husband because I want to make him happy.
I assure you that I had a happy childhood, and I am currently happy , despite my health conditions. The problem with dealing with doctors over these last 3 years is, if they can't find the hard evidence through MRIs, LPs, etc..they then tend to blame your mental status. They want to say that there must be something wrong with you mentally, or you have stress. They do this, or assume this, without even knowing your history(mentally). To me, this is wrong.
I'm not saying that stress can't cause things to go wrong in ones body. Everyone, to me, has certain levels of stress in everyday life, but I assure you that my stress levels are controlled and I am a happy-go-lucky person. Life is too short to stress over things you can't control.
My problem is, that I have several doctors, my GP, opthamologist, urologist, that say that my symptoms do fit with MS. My local neuro has said the same thing. My local neuro has perform an EMG and said that my slight foot drop must be coming from the central nervous system since I passed the EMG with flying colors.
My understanding of MS, according to the MS society, is that it is a clinically diagnosed disease and not everyone has a positive MRI, but they still can be diagnosed. 5% can present without a positive MRI. Why couldn't I be that 5%? In the meantime, while my doctors are debating, my health status is declining, without treatment.
My doctors have already cleared me as far as my mental status, by the way. I'm not offended by your suggestions, but I think too many doctors are thinking this way, rather than listening to their patients. To me, all this does is confuse the patient, and delay a diagnosis when a neurologist plays psychiatrist.