@jessitru hi! Glad I came across your post. I’m experiencing some of these same symptoms. I have had 4 EKGs (from different clinics/ER) , chest xray, CT scan, blood work and all come back clean. NOTHING! Now that I am reading this, I remember finding a bite on my stomach months ago. Never went down til maybe a few weeks ago. It didn’t bother me except maybe itch once in a while so I never worried about it. I wonder if that was a bite that caused Lyme disease. I will have my doctor take a look at it. Things often go overlooked because I am typically a healthy person. Never visited the hospital for myself since having my son 14 years ago and now the sob, tingling, numbing, feeling anxious, lightheaded. And it’s scary when all the tests shows nothing!