Hey guys, I mean this in the kindest way possible. You will never find "the answer" as to what is going on in your body. And the more you research and potentially scare yourself, the more cortisol / adrenaline you are going to deliver into your system, and slow down your progress. THC also interacts with your amygdala in your brain, which leads to panic, de-regulates your stress systems, and as a result causes all these nervous system problems. If our stress symptoms are out of balance, then we have to do all we can to bring them back into balance. And often doing all we can is simply doing nothing, living life despite our symptoms, and just bringing them along with us.
I was a pretty severe case in the beginning, and now I'm mostly normal. You can read my old posts, and you'll see how panicked and emotional I was. I had to learn to just finally let go and just give a whole lot of time. I used to research, but it did me no good. I've learned my anxiety isn't all that special. In my anxiety support group (DARE) there are people with many of my symptoms who haven't ever used drugs before. For them it was a trauma, or simply, a culmination of too many life stressors. There are people there too who are recovering from Benzos, other substances, etc. It's the same formula for healing, acceptance, healthy lifestlye, time. We all have health anxiety to a degree, and we've all learned Dr. Google has all of the information to scare us and none of the answers to heal us.
If you do want explanations that calm you, please read "At Last A Life" by Paul David and "Hope and Help for Your Nerves" by Claire Weekes. Paul David in particular had a 10 year anxiety disorder from drugs. Don't be alarmed by that timeline though. He spent 10 years searching for answers with medications, psychiatrists, wholistic therapists, etc. Finally after 10 years he just decided to give up his constant search for an answer, and decided he wasn't going to fight his symptoms anymore. He decided to let go and accept his symptoms so that he wasn't feeding the stress cycle anymore. And then at that point he finally recovered, because he wasn't feeding the anxiety loop in his body anymore. He has an excellent website as well. Go check it out.
So my recommendation is to treat this as an anxiety disorder and begin to let go of all the questions, / fighting of how you feel . I belong to the DARE group, and it has absolutely made a huge difference in how I approach how I feel about my sensations. DARE is founded acceptance and commitment as well as a healthy lifestyle. With DARE I have a support network of people who are not focused on trying to fight their anxiety problem, but are instead focused on how to lovingly accept the problem while they go and live an engaged life, so that the problem eventually fades away. And even if it doesn't I'm learning how to live the best life while the problem is present.
Again this is advice offered kindly. I only want you to both (and all of us) to be on a good path. I've been through the fires of hell as you all have, and I spent a year scaring the crap out of myself googling every symptom I felt, which terrified me even more. Now I can see and even feel some of the light of heaven, and when hell comes to pay a small visit, I know to just give it a hug and say "Whatever!" I hope you consider looking for some support, this is such a hard problem and we all need help with it especially in the early stages. Treat yourselves kindly, I wish you both well.