Day 20 - Sudden change? Intense urges

So its day 20 and things got kinda weird.

Started this morning with little motivation, energy or desire to do anything. This how it has been for the past week or so.

By midday I was bouncing off the walls, was having insane urges and cravings.

I went to the gym to try burn off the energy as was making a relapse risk. Came back urges started again, brain felt like it was flying off the handle.

Nothing was interesting enough, couldnt stick at one thing for like a few minutes before pacing around the house trying to figure out what to do.

Went for a run to try calm things down and then had a cold shower - this helped for like 15mins then things went crazy again.

I am still feeling very 'unsettled' - anyone had a similar experience?