Hi @jayhawk57, I extended the title of this discussion to differentiate it from the other discussion about MALS here:
- Median Arcuate Ligament Syndrome (MALS) https://connect.mayoclinic.org/discussion/median-arcuate-ligament-syndrome-mals/

That's quite a number of acronyms FMD (fibromuscular dysplasia), MALS (median arcuate ligament syndrome) and now POTS (postural orthostatic tachycardia syndrome)

I'd like to invite fellow members @astaingegerdm @kariulrich @fmdadvocate @iagrrl @jmmb @elle1233 @ukmalsman @fourof5zs and @azurite into this discussion in the hopes that they may have some thoughts on your situation.

In the meantime, you might also be interested in these related discussions:
- Fibromuscular dysplasia (FMD) https://connect.mayoclinic.org/discussion/discussion-fmd/
- POTS - postural orthostatic tachycardia syndrome https://connect.mayoclinic.org/discussion/pots-postural-orthostatic-tachycardia-syndrome/

Jayhawk, have you had the POTS diagnosis confirmed perhaps with a tilt table test?