It felt SO good to go for a short run... I just ran about 2 miles and my lungs were on FIRE. I haven't done any sort of weight training or running in 4 months due to assorted injuries (7 months for weights, 4 months for running... both due to injuries). Now I can't stop coughing though, dunno why... I'm slightly sick and this is the first time in 4 months I've even breathed hard because I've been taking it really easy and my job doesn't have any sort of heavy lifting.