Felt poorly

I was laying down and after about 30 minutes, suddenly felt out of breath like I had been running, then felt my heart pounding, then started seeing black spots in my vision and sudden dizziness like I was drunk. The same symptoms I've been having on and off for a couple months now, but in the last couple weeks now are daily. I had the BP cuff nearby the last few days to monitor and got this reading.

Should I contact my doctor or just wait it out like I've been doing? Is this something normal or average?

For reference, Monday I had an episode that looked like this:

And yesterday I had another:

I feel so drained and incapable of doing anything, and I don't want to be a hypochondriac.