Weak, dizzy, fatigue, brain fog, blurred vision, memory loss, feel like I can’t catch my breath. What could these be symptoms of?

Dehydration.

Water regulates every function in the body and it's because you don't drink enough water that these areas have been affected.

A.N.X.I.E.T.Y. Anxiety disorders are f’ing horrible I had a severe one. I was given, and am currently still taking, something called Venlafaxine for it which is working wonders. Go to the ER to make sure tho. They’ll do chest X-rays, blood tests and physical checks.