Seroquel/Quetiapine scary withdrawal symptoms?

Hi. I'm hoping to get some help or reassurance that what I'm experiencing is fairly common and that it will improve with time. I was prescribed Seroquel/Quetiapine for insomnia (IR, regular, not XR) to take nightly or as needed, 25 or 50mgs, by a nurse practitioner. I took it most nights anywhere between 12.5 and 50 mg doses from October 2024 until June 2025, about a total of 220 x25mg pills over about 9 months.

It helped insomnia tremendously with no other side effects (that I could notice). Around June 29, 2025 I stopped cold turkey as I was becoming worried about potential side effects of long term use. About 11 days after stopping I suddenly started feeling dizzy. Not a regular dizzy, more like a persistent and consistent "stoned in a bad way" dizzy, feeling really drugged, that isn't going away, it is now day 13 of feeling this way. Secondary (not as persistent, consistent, or bothersome) sensations are a weird internal body buzz and a strange bitter taste in my mouth. No other symptoms, blood pressure and temperature are fine, as are nutrition and hydration, no other meds (other than Reactine for allergies, and supplements - nothing new in the last few months however), nothing new ingested. I have been under a tremendous amount of stress and anxiety for years, plus perimenopause, but I have never experienced anything like this persistent "stoned" feeling. It feels too coincidental to stopping Seroquel, though I never thought that quitting it after only on it 9ish months at low dose would cause something this horrendous. The NP who prescribed it said that it is very safe, non addictive, can just use it as needed for sleep or discontinue.

Is there anyone out there who has experienced something similar? Please put my mind at ease and tell me for how long, and what helped you, this is terrifying, and I can't help but spiral into worrying about things like MS or brain tumours or some other scary causes, even though the onset of this awful "stoned" feeling came shortly after discontinuing Seroquel. Thank you.