Sounds like the meds aren't working anymore. Sometimes they poop out, and sometimes new problems will overwhelm them. If this is the case, it's time to see your psychiatrist and tell him or her what's going on and whether you need to up the dose or try a new approach. Also sounds like the therapy isn't working either, at least not yet, so it might also be time if you've been seeing this counselor for awhile to see someone more attuned to you or more expert in treating anxiety problems. Life doesn't stop just because you're an anxiety sufferer -- life keeps happening with new challenges. If new challenges prove more than you can handle, it means you haven't fixed your problem yet. Medication only tamps down symptoms, it doesn't cure anything, and therapy more often doesn't work than works, but there's always another therapist out there who might be better for you. In the meantime, has your counselor taught you any relaxation techniques to help you when things start to spiral?
Wow, I'm very sorry to read this and that you are feeling this way. Can you call your doctor? Even when on medication, people will (and are supposed to as we are human) have good and bad days but if this is frequent, constant or going to a level that is such you really can't cope, you need to touch base with your doctor. Perhaps your med isn't working any longer, perhaps you need another dose, perhaps you need a second medication added. I don't know but your doctor should be able to help you with a treatment plan.
Also, do you do any type of therapy? Coping skills are essential. And is something triggering this? Keep a journal to help narrow down what may fuel this if there is anything.
My son often tells me he feels like he wants to jump out of his skin. He has sensory disorder and anxiety both. In all seriousness, this is greatly helped by exercise. Things that work for him are weight baring exercises. So, lift some weights if you are able (in good health to do so)-- even just light dumb bells. Go for a swim (the perfect nervous system exercise as it hits the deep pressure needed, resistance both). Carry something heavy around your house. All of that works on the nervous system. Then pounding sensations such as marching, skipping, running, etc. can help. Linear movements such as stationary bike riding (or real if you do that) also is very soothing to the nervous system. He also works on breathing exercises that calm him 'in the moment'. Breath in for 3, hold 3, breath out for 3, hold 3, repeat. These are big deep breaths which you will naturally have to do to get to a count of 3.
Let us know how you are doing!