I've been having episodes of weakness along with feeling faint and off balance recently. it's affecting my quality of life and ability to work. it can happen randomly or due to stress/strong emotions. i've grayed out a few times and my speech slurred?

There are two measures you should take. One is an evaluation by a neurologist who will order appropriate testing as part of the assessment and the other action is to consult a mental health professional for stress management therapy or cognitive behavioral therapy.

Your symptoms are serious enough for you to have comprehensive evaluation because of possibility of transient ischemic attacks and you do not want to wait until you have a stroke before being evaluated. If you use any form of drugs or alcohol it is important to stop as soon as possible.