### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
i feel as if one of my body chemistries if off. i have chrons disease and autonomic dysfunction.i was put on ritalin to raise my heart rate. i did a lot better for about 6 or 8 months. now i have crashed again i feel extremely exhausted i am thirsty all the time feel pressure in my chest.also i started sucking i my mouth because i am soo dry. my body temperatures are way off i feel like i am on fire i constantly have mucus in the back of my throat. i have been coughing on and off with no sputum. if i spit it is white foam. if i start to do anything i start to shake sweat feel as though. i am going to die.my breathing is vary labored.the more i push myself my breathing gets better but my heart rate more than dbles. my body shakes severely the longer i stand.also i start sweeting perfusley.

### output:

Hello Thanks for posting here. I can understand your agony. I do not know for the indication of Ritalin here. If your heart rate was low, I need to know how low was it. Your symptoms also point towards some infection in the body in view of fever, sweating, shivering, cough, labored breathing. I advise you to get investigated with a complete blood count, ESR, CRP, urine routine, chest x-ray, sputum aerobic culture and blood cultures. You definitely have some infection in, the body most probably in the lungs, so you need to be on antibiotics.  Also, the need of Ritalin should be assessed. Whether you really need to be on it must be evaluated, because some above symptoms may be because of Ritalin use. I would suggest the Ritalin to be stopped, but how severe is your slow heart rate (for which Ritalin was started) is not known, so please update some information about heart rate disturbances. Wishing you good healthRegards