Glad you're seeing the doctor. Sometimes I think (no, I know) that we get symptoms that just happen to coincide with quitting smoking, that are due to something else, and we attribute it to the wrong thing. I already told you the near mental breakdown I had at six-eight weeks, and how I fixed it, but here's another thing that happened. At around two weeks, I was getting nauseous, extreme fatigue, pain all over like the flu. I looked up quitting smoking symptoms and everything I was experiencing was on the list so I decided to just tough it out. This went on for two weeks and kept getting worse, by the end of the two weeks, I could hardly move the pain was so bad and I was ready to call the doctor first thing the next morning, then woke up with blisters - SHINGLES! And I was attributing everything to the quitting smoking and/or starting vaping
Found out later that if I had gone to the doctor within the first 72 hours of the symptoms, I could have gotten a shot that would have lessened the total duration and severity of the episode, but it was way too late by the time I realized what was happening.