I can relate to a lot of these feelings, and sometimes they last a long time. I was on semi-dead mode for a long, long time, feeling more like I was dying than living. It sounds like you are overloaded with current life stress, old triggers, and just shutting down. I don't want to say that it's "okay" because it's not healthy for us and it feels horrible, but I don't think it's atypical given all the stress. I'm no expert but in trying to understand my own stuff, I shutdown under loads of stress or triggers...something like parasympathetic overdrive. Basically, even if in a sort of maladaptive way, my body is trying to protect me. It's shutdown or nervous breakdown...like those are my options sometimes. But life feels so joyless when bombarded by stress or my own numbness. That's maybe the worst part. I have to find little bits of good, which is hard, but sometimes it's just finding a new song. I can't do the dying thing long because I really end up hospitalized.
When I feel like this, I allow myself to shutdown with some awareness, and shield myself from stress...hang out in a small interior room with dim light. No noise. I also cut back on what I can. And ask for help where I feel like I can, though it becomes very hard to do that when I'm shutting down. I also try to work on staying present and active in okay ways, like walking my dog or just cleaning a countertop. Do you feel like you can talk to your doctor about this mj vs Xanax thing? Medication and substance stuff is stressful, especially when we fear being cut off. I won't suggest you sober up because I don't know if you're an alcoholic or even feel up to that route...I understand alcohol "helps" (I got sober years ago). But you're right, it's a mega depressant. My sense of humor (life-saving) returned when I got sober and had to simultaneously go off meds because my insurance quit paying for them. For me, that stuff added a very thick layer of deadness to my feelings of non-existence. I didn't realize how bad it was for me until I was clean for a while. Mj...same thing. This feels understandably horrid for you, but it might be a super uncomfortable transition vs a death. If you can manage on something less of substances, whichever they are, and find other ways to reach out, it might actually help lift a part of your cloud.
Aside from the meds and substances are there other things that help you feel safe or protected in your shutdown place? I've had to increase this list for myself because I personally can't do meds and my doctor won't prescribe benzos because of my horribly addictive history. I go through some hellish days but getting through them has forced me to grow and get more creative, which reminds me that i'm not dying, i'm just struggling to live sometimes.
Hang in there, moment by moment if needed. Reach out for help wherever needed (here, others, doctor, hospital/treatment/support group, therapist). You're not alone in this. Glad you posted.