I started smoking when I was 20 and just stopped 5 days ago. I smoked about a pack a day. My withdrawal feelings are, completely brain and mental fog, like feels constantly like this. Fatigue in my arms and legs, and tired In my eyes. I also stopped caffeine 5 days ago as well. My stomach is hurting or feels like someone is pushing on it some times. I don’t know the full extent of withdrawal symptoms I can have. I also suffer from aniexty so these symptoms are a bit more extreme because of this. Which makes it worse. Anyone’s help would be appreciated!