I can understand, and I'm sorry that you're feeling this way. The symptoms you are describing sound just like mine. I can't focus, I can't eat, I shake uncontrollably, sometimes vomit, and feel as though I am having a heart attack most of the time. I have found that sometimes a hot shower and a calming herbal tea (anything with chamomile and lavender is relaxing) will sometimes help. I hope you feel better; feeling this way is awful.

ETA: Sometimes just the aroma that comes from the hot tea helps me. When I am nauseas I will sometimes prepare it and just hold it, feel the warmth of the cup, watch the milk swirl (I take mine with milk and sugar) and breathe in and out. I try to focus on the warmth, the milk pattern, and the smell and shut everything else out. Sorry for not being clearer earlier I hope you feel better.