so sorry to hear you're going through this; it is extremely difficult sometimes to find the right combonation of treatments/changes that works for each of us
yes it's very common to feel this way; when I have episodes I've learned to listen to my body and rest if I feel tired after...sometimes mine will last for 3 or 4 days yet other times just 1 day
they may be able to up your midodrine dosage so mention to your doctor that youre still having symptoms. I'm not sure what other things they have you on or what other symptoms you're having? salt & fluid loading? I do notice that if I drink ice cold water when I start feeling "icky" for lack of a better word it does seem to help somewhat
others use compression hose and garments as well as binders; they dont work for me and only make my legs/feet ache that much more and I've learned for me it's important with orthostatic intolerance to move very slowly or change positions gently or I get sick
here's some info that may help; and hopefully others will be able to respond with what works for them also
http://www.medhelp.org/health_pages/Neurological-Disorders/Lifestyle-Changes--Dysautonomia-Triggers/show/985?cid=196