One aspect of the Rewire is trusting your body and not stimulating it artificially to meet our short term needs of pleasure. I would say if your body is genuinely going through a phase of reduced sexual interest, then it’s best to respect that. It’s ideal if you have a trusted sexual partner, because then you can talk to them about it and if they are genuinely close to you they will understand and support you. They may even participate by engaging in sexual activity in a way and pace that suits you, and it could help build greater true intimacy between the two of you. Perhaps going at your own pace could lead to even more awesome sex than you anticipated.
If OTOH you don’t have such a trusted partner, then may be all this is nature’s way to help you grow until you actually can meet and attract such a partner? May be you need to transform as a person before you attract a partner who truly arouses your interest. Just my thoughts.
But overall: I think it’s best to be in touch with your body and not force it towards stimulation. You are alright and what’s happening to you as part of the NoFap process is OK.