This "anxious/tense" feeling in chest/arms

I don't really know what to call this feeling, but it starts after a few days of abstaining.

It's a completely physical feeling. My mind can feel at peace. No racing thoughts, enjoying a delicious meal, calm, looking forward to next fun thing. Not even feeling horny or particularly desire to fap, but this physical feeling is terrible.

It's like my heart is overworking. Check my pulse/heartrate/blood pressure and everything is good. It's like my skeleton wants to jump out of my skin. It's like feeling nervous, but I don't feel nervous in my mind. My hands need to stretch. I need to ball them into a fist. I need to... something. I try to walk it off. Sometimes the walks help, but usually not. Sleep is great, but the strange body feeling comes back a few minutes after I wake up.

The closest I can find to this is body feeling is tardive dyskinesia or generalized anxiety disorder, but I'm not really stressed or nervous. It's like a permanent overdose of nicotine or caffeine without the alertness. Life is okay other than the nofap journey.

Does anyone else have this body feel? I don't know how to describe it. Even tense doesn't work. My muscles aren't tight. I need to move, but after I move I still need to move. No relief. It just keeps going.

Has anyone else suffered this, and does it also go away with enough time in nofap? I hope it's just my body pumping stress chemicals in an attempt to get its fix, but for 3 weeks straight?