Doesnt sound too good man, I've had similar reaction to MPA. Only used Propylhex (HCL salt) a few times but I got under the impression that it might cause some nasty side-effects later on as it felt pretty adrenergic and vasoconstrictive to me.
I recommend to discontinue Propylhexedrine till you sort it out. Avoid other stims and coffee for at least a little while until you get better.
Go to the pharmacy and get some L-Arginine, Magnesium and Potassium (all OTC) - they will help with your symptoms quickly and efficiently. If you can get a hold of some Noopept and Lion Mane's mushroom extract, it would be even better. The point is to provide more nitric oxide to your blood, ease off the pressure and trigger more nerve growth.
Please post with updates!