YES!! I experience this all the time, particularly at work which is incredibly frustrating. My body just gets so weak and heavy and doesn't want to keep going, and my brain gets all glazed over. I thought it was just my POTS but my therapist says its dissociation but i dont think it's fully either of those.. but yes I 100% understand, I didn't know other people experienced this!

oh no! Yeah, usually for me I can find a trigger after the fact but it can either be emotional or physical or both. For example, last week I was getting ready for work and it was a hot day and I'm heat sensitive. I had prepared but I was nervous about a long shift in the heat, but I still felt like I could get through it. Then suddenly right before I need to leave my body gives out and everything slows down and I'm just stuck on the floor with no strength to get up. Eventually I got myself out the door but I fell into my car exhausted and on the verge of tears and i didn't know why. But I couldn't focus enough to drive and couldn't keep myself awake and had to call out of work. For that it was probably triggered by a mix of stress and heat. But it's never really consistent. It's super frustrating because I'll need to get things done and just suddenly have no energy at all