Hi, for the past few weeks I've been having random dizzy spells and I have no idea what's causing them. Had a full blood count done at GP, had blood pressure checked & ears all checked but everything was normal. It started again about an hour ago, I was sitting down with my little boy and i just suddenly felt like I couldn't breathe properly, I then started sweating really bad and the dizziness happened. Now an hour later I'm still lying on the sofa, heart rate hasn't dropped below 100 since then, still feel like I can't breathe (oxygen levels are bouncing from 96-98) and now feel super tired like I've not slept in days! Has anyone had this before? I feel completely wiped out!