23F / 110 lbs / 5'5'' / no medical history of diseases except generalized anxiety / no smoking, drinking or taking any recreational drugs

So ever since last year I started noticing some problems regarding my speech. I've used to be pretty fluent and articulated in my native language but ever since I cut contact with my social life during the pandemic and didn't talk as often, I started to notice my speech getting slurred, I started to forget words or use a simpler vocabulary when talking. I only have this problem when talking verbally to people, not when texting/writing. Learning new things is also a problem cuz I can't focus my attention for long enough and it feels like the information is coming through and ear and getting out of the other.

It's also getting worse when my anxiety level is high. 
Another thing that's been concerning me along this is an upper eyelid spasm on my right eye that's been happening almost everyday for over 2 months. It's very mild, at the corner of my eyelid and lasts for a couple of seconds but since i'm a very anxious person with a history of health anxiety, I can't stop thinking about worst case scenarios like brain tumors, strokes, MS, epilepsy and so on.

I've also been low on energy lately and feel generally apathic.

TL;DR: scared that slurred speech, forgetting words and an eyelid spasm might have some serious causes.