Went to bed after walking on the treadmill & lifting some weights. I've been trying to eat better & walk on the treadmill. The weight lifting was only a one time thing that was the night before. I'm a single dad of a 5yr old & it scared me when I couldn't catch my breath and my chest felt pressure and just an odd feeling, so I called my mom to come over at 4am. She checked all my vital signs & they seem fine. My breathing was around 60 my b/p was 117/76 I had no congestion in my chest except a lot of sinus congestion & my eyes seem a little red. I do have a dog that sheds a lot but this had never happened before. Any suggestion what this could be? Could this be respiratory, Cardiac or allergy related?