Also, sorry for whining a bit here. I realise much of what's happening to me isn't HA, and not anxiety in general. The symptoms are real, and the whole thing is having a massive impact on my mental health. I really appreciate everyone taking the time to reply here. It genuinely means a lot.

I'm going to make an appointment with a therapist this week as I've felt uncomfortably close to unhealthy thought patterns about taking myself out of the equation. Having been there in the past, I'm seeing the early signs of that thought process creeping back in. I simply feel like a huge burden on my loved ones, especially my fiancé. I really try not to offload too much on him, and any time I do, I feel like he takes more and more onto his shoulders.