I've been having shortness of breath/ chest tightness for a couple of weeks now, I think it may be asthma. However today, on the bus, I felt like I couldn't catch my breath and I felt really lightheaded and I had pins and needles in my arms and face. My mom said it could be blood clots :( Does it sound like that, asthma or just panic?! I have a docs appointment on Tuesday but now I'm terrified and just feel like crying :(