I don't feel mentally capable of socializing...my work is like a cloud over my head....this can't be normal?

See a professional: If you could see a mental health professional you'd get some help sorting this out. You sound anxious, depressed, or stressed. With a history of panic attack you're likely dealing with ongoing anxiety. There's excellent help for anxiety disorders, both with medicines and with therapy or counseling. Reach out and deal with this with your therapist.