Shortness of breath

I am experiencing shortness of breath and flushing that is slowly going away, but is concerning nevertheless.

Here's what I took:

• Lemon Balm Extract (1,600mg)
• KSM-66 (300mg)
• TMG (1,000mg)
• CoQ10 (100mg)
• Vitamin D3 (5,000 IU)
• Prime Labs Testosterone Booster (1 tablet)
• Caffeine (~150mg) [black coffee]

The onset came shortly after I ingested the Lemon Balm Extract.

My newbie assumption is it's related to GABA. To add if it matters, I have GAD-65 antibodies - could that add to the cause?

I've had these symptoms about 2-3 times prior, and I believe all involved some sort of a mild GABA supplement, but also other factors like an uptick in caffeine dosage. One of the times I decided to go to ER and my primary care doctor, and they haven't found anything through a typical blood work checkup.

Any ideas on what could be the issue here? I'd love to riddle this puzzle.

EDIT: While we're at it - I want to thank /r/nootropics in general. Great community with great minds. Not exactly appropriate here, but I felt like I needed to write this.