I have autonomic dysfunction, MVP with regurgitation with high heart rate, tachycardia, POTS, and asthma. My symptoms are increasingly worse since being diagnosed wit all this in November. I was previously a runner and very healthy, had mild asthma that was under control with signular. My symptoms began as just increased heart rate and SOB when running or walking. They progressed to extremely high heart rate (175-220) walking, dizziness, low blood pressure (70's/40's or lower sometimes) unable to walk any distance. Then the numbness in my hands and feet.. and vision that would turn blue and my hearing would fade in and out. At this point my doctor put me on Coreg.. it made me pass out.. low blood pressure, and caused asthma symptoms. They put me on metoprolol. My blood pressure dropped, they told me to stop taking it. They put me on midodrine. and it gave me severe anxiety, high heart rate, and blood pressure remained low. They ran all kinds of tests on my lungs. they are picture perfect and my breathing itself is perfect. They did a 30 day cardiac event monitor. and said i had POTS and tachycardia. they did some in the office exams having me stand and sit and walk and bear down listening to my heart each time, said i had Autonomic dysfunction.they gave me compression stockings to aid in raising my blood pressure, told me to eat tons of salt, and drink lots of fluids. they also told me to sit down and do everything. sit and do your hair, sit and make dinner, find a job that is sitting. dont exercise. I did this for three months before i was able to see a new doctor. This doctor just put me on Atenolol 50mg. i have been on it about a week. my blood pressure is anywhere from 70's/30's to 115/75. im feeling sluggish, tired, depressed, and over all just crappy. they told me that i should keep taking the medication for a month even with how low my blood pressure is,, so long as i dont pass out. My pulse is staying betweek 65-110 resting and between 100-130 walking on a treadmill. My shortness of breath is MUCH better.. but does anyone have experience with this medication? will my body adjust to the med? i am just so miserable, but so happy that my heart rate is better. I joined this forum hoping to talk to others with similar problems. i feel alone with this "disorder" and the doctors keep saying its benign so they really dont care that i am miserable! Thanks for reading!