Since the TMS work has improved my condition so much last 9 months, I decided to dig into another problem - caffeine. The reason I´m writing about it here is that with this endeavor my hip/back pain came back with a vengeance, and depression symptoms. Nicotine background Earlier in my life I used nicotine (not smoking). First in University and quite much. Quit for about 5 years, then started using it periodically a few months here and there during stressful times at work etc. + some when partying. Two years back I quit it for good and haven't had any since. It took over a year to become completely normal again with dopamine levels etc. I also got severe back ache first months when quitting (I now understand it was TMS since I used nicotine to avoid my feelings and pressure myself a lot). Caffeine use I found myself using caffeine the same way! During calmer periods I had 2 coffee/day, and when more stressful it could range 4-6 coffee/day. I have responsible job and young kid (and one more on the way) so the stressful times kept increasing. I got 2 month vacation this summer so decided to just quit. Here is what happened so far: Day 1-3: Reducing 500mg/day to 200 mg/day Small headache. Some back/hip pain coming back. Low energy. Day 4-7: Reducing 200mg/day to 50 mg/day Severe headache. Significant back/hip pain. Low energy Had a fight with my wife on day 7. Cried like crazy for 30 min - felt much better afterwards. Week 2: Caffeine free Small headache like one more day - then gone. Back/hip pain getting better. Irritable. Low energy. Low quality sleep. Week 3: Caffeine free Moderate back/hip pain still. Low energy. Trouble sleeping. Extremely low motivation. Depression mood on/off. Irritable sometimes. Week 4: Caffeine free Some back/hip pain still. Low energy. Depression mood every now and then. At second half of the week I started sleeping better, like better than before I quit! Last days I could feel my self really getting into rest-mode, completely relaxed when I sat down after lunch for example. This is very encouraging! With this, my mood also started to improve. I feel more at ease than when drinking coffee half of the time now. Still very low energy though. Week 5: Caffeine free Starts tomorrow. My view: - It will take at least 3 months to reset my brain chemistry (dopamine etc.). It will take 9-12 months to be completely normal. - The acute symptoms like severe headache etc. is as they say: gone within about 1 week. But there are many long term recovery symptoms!! - Caffeine acts as an adenosine-receptor antagonist to keep you more alert (not sleepy). That's the main message we get. But more and more research show that it also mess with your dopamine systems. It also increase your cortisol, adrenaline etc. How easy is it to be in "rest and repair" if you keep injecting this stimulant into your system?! For me, not easy at all. It´s a fucking stimulant! And it mess with brain chemistry and nervous system. I´m motivated to reset my system from this. I´ll keep you posted on the progress.