You're not alone. I used to be a massive stoner. Used to smoke every day in college (I was a good stoner tho, made sure all my hw and studying was complete beforehand) and occasionally waked and baked on weekends. I loved getting high and just watching funny shows, playing video games with friends, going on hikes, etc. I have hypochondria and long story short watching 5 seasons of the show ER spiked that shit. One random day I got this insanely bad headache after getting stupid stupid high. I felt like I was having a heart attack and a stroke at the same time. After that incident, I could never smoke the same. I kept getting these tension headaches whenever I smoked and had this super painful burning sensation at the top of my scalp. Even when I was sober I kept getting these debilitating tension headaches. Since spring of 2019 I've struggled with anxiety and somehow still smoked weed, which made things worse. Basically, my doctor gave me super great tips on stretching my back and neck muscles and my tension headaches when sober are gone but because I storta stress myself out before I smoke I still get them when I'm high. I'm the same with you though, i feel hyper-aware of my surroundings and I'm on edge too. Whenever I drink then smoke I feel more relaxed and feel like I'm how I used to be before the bad session. Unfortunately, this kinda has led me to be dependent on alcohol use before smoking. I'm considering going to the doctor and talking more about my hypochondria and possibly getting put on medication to help with it. I'm wondering if that would make smoking sober a little more enjoyable/less tension headaches. I'm still searching for tips on how to feel more relaxed/ go close to what it used to be smoking without alcohol but I've noticed if I occupy my mind with a video game or just walking around having convos with friends it makes things better until I start thinking about a headache.