Feelings of mental fatigue and movement

I am feeling a feeling of both fatigue and burn-out and what I call mental movement going on in my mind. I feel muttled up in the head and in my thoughts. Anyone else experience such a similar feeling and discovered what it was caused by and what they may do about it? I actually feel what I call lines and at times loops that I can trace in my head. It is very annoying to say the least.

I would truly appreciate a doctor weighing in on this with an explanation. Thanks !