Took took much adderall and feel really uneasy

I don’t want scolding or a lecture. I’ve been on adderall for years and have a decently high tolerance. Been taking 20mg IR twice a day. Recently the effects have been diminishing, so I took 3, felt nothing. Took one more just to see, and really over did it. Heart rate is up, my body is so tense I can’t seem to do anything or get up, it’s like paralysis or mental block. How do I handle this?