Quitting weed, headaches and extreme illness anxiety

Hello all, so for the first time in my life, this past month I’ve been dealing with pretty bad anxiety, mainly in the form of illness anxiety. I’m a 27 year old male who pretty much smoked pot everyday since I was 17 besides some family vacations here and there. However about a month ago, getting high started causing me anxiety and making me hyper aware of my body and thinking stuff was wrong with me. I was having tendon pain in my hands already and I’d try to smoke to relieve some of that and it would just make me 10x more aware of it than before. So I decided to try stopping for a bit, this was probably 2 weeks ago. I had some headaches here and there for the first couple days but what I really noticed was how anxious I was all day. I became a hypochondriac and was constantly worrying and googling, thinking I might die with any physical symptom I felt. A few days ago I tried to take a small hit off a dab pen to see how it was and I wasn’t a fan at all and it felt like it restarted the withdrawal symptoms and more anxiety. In addition, I’ve been an (undiagnosed) obsessive compulsive nose picker since as far back as I can remember. When I read that nose picking was possibly linked to dementia and the dangers of an infection traveling from your nose to your brain, I tried to consciously stop but it’s been such a habit for 20 years I still find myself doing it. That fear and the illness anxiety have like totally taken over my thoughts for the past few days. I’ve had a headache for most of the last 2 days and I’ve convinced myself I’ve given myself some sort of brain infection like meningitis through nose picking or a “cavernous sinus thrombosis”. Those are both extremely rare medical events but I’m just so anxious that I’ve given myself one through the nose picking and can’t stop googling and looking at symptoms. I’ve considered many times today driving myself to the ER just to make sure I’m not going to die of something when I go to bed tonight. I feel like I’m maybe even causing physical symptoms to manifest just by overthinking them. Because when I get into a conversation at work it feels like my headache goes away a bit then I get back in my own thoughts and it comes back. I think next week I’m going to find some sort of therapist/mental health professional to consult with because the anxiety has become overwhelming and it’s something I completely not used to. Smoking weed used to keep me anxiety free through life and then it turned and made it terrible. I thought stopping might help but it’s only made it worse, some of that could be withdrawal. Looking for some thoughts from people who’ve experienced anything similar. Thanks everyone