I like your doctor since he is giving you HGH also.

Must be a longevity clinic. Does he know you are running a cycle? I'm guessing not. your body fat is a little high but since you started the cycle and you are 41 I would finish it out without the Deca but either way it's up to you. You will get more out of the cycle once you get the body fat down under 15%.
Also since it is doctor prescribed I'm assuming you are on TRT? how long have you been on TRT and at what dose? It's very possible also that it's an E2 issue but the only way to know for sure is to get blood work done. I know myself at a lower dose than that I had crazy high E2.