Racing Heart - no reason?

[ChemicallyEnhanced]

I haven't taken any more or less of my meds than usual, I'm not at all anxious and have not been exercising.
My normal heart rate is between 60 and 70 bpm. can actually feel it pounding and racing so I timed it and it's currently 146bpm. I'm also a little shaky and have started sweating.
I'm also not in withdrawal.
Any idea what's going on here??

 

[Cream Gravy?]

DC>H&R

 

[ChemicallyEnhanced]

DC>H&R

Could you just delete it for me please? The issue resolved itself anyway.

 

[Captain.Heroin]

Anxiety, panic, stress, blood pressure, a lot of various physical things. I normally have an insanely high resting HR/BP and doctors look at me like I'm going to fucking die.