Neurological issues on left side, any theories?

Hello, I am F20, 150cm 45 kilos, I don't smoke and I have Ehlers danlos and chronically low blood pressure.

Around a year ago the left side of my body started to become numb for 20 to 30 minutes at a time. The symptoms range from simple numbness to paralysis for multiple minutes. My face also tends to droop during these episodes. My cognitive functions such as memory and focus noticeably decline during these episodes and I stay foggy and out of it for up to two hours after. 3 times now I have also just been in pain from my left side 'heating up' (friend said it does not feel warm to the touch) to a point of it feeling like my skin was burning from the inside.They tend to occur more often under stress and I have gone through an MRI of my head and spine with no obvious abnormalities.

Possibly unrelated but I have also been driven to the ER for stomach pain so bad I thought it was a heart attack and I have had stomach problems my whole life, instantly feeling full, chronic constipation, etc.