I feel terrible today. I have had to do 2 school pick ups and i feel done in. Exhausted, lightheaded and shaky. My chest feels tight and almost like i haven't taken a deep enough breath. I do actually think i felt better last week when I was still positive. I have sinus tachycardia and feel like my heart rate is all over the place. I do take beta blockers for this. Just feel really tearful today.