I have some progress to report regarding the flatline. During the first year of my recovery I would get these dull headaches from any source of dopamine. I couldn't listen for music for too long at a time. Once I was at a casino playing some video poker and got a headache after awhile. I generally stay away from sweets but having the occasional ice cream would give me an awful headache. The aches and brain fog still haven't disappeared 100% but the baseline is way higher now compared to the first year. My penile sensitivity is improving by about 1% a day. Overall I'm still in flatline but the nerve sensations are slowly becoming more noticeable to me. This morning in particular the frenulum has become way more responsive. For most guys it is an erogenous zone but due to my addiction I had lost all sensitivity there. I did indulge in some sexual thoughts for a little bit and was able to achieve 50% erection for several minutes. Really I shouldn't test it like that but I was curious to see what would happen. I had woken up this morning completely refreshed with no aches or brain fog. After testing myself there is now a pronounced headache deep in my skull and pressure on the third eye. The majority of reboot reports I've read seem to indicate that libido just wakes up out of nowhere. My experience thus far is that there is slow incremental improvement after a long flatline. I'll do my best to avoid further indulgence in sexual thoughts as a means of testing myself.