I felt that alot years ago. Its gotten better since I realized that my therapist was right about me having sensory issues. Certain textures and sensations trigger it. I have found the worst two are money and wind on my skin. Having my finger tips rubbed... touching something dry with dry hands. Just typing this is making me feel the bug crawling sensation actually. Sand paper. My nails touching metal. The feeling of air dried bath towels. Touching a shower rug. Dryer lint. Ive learned to avoid these things and many many more things that trigger a crawling bug reaction.