So I've just started running. I'm an S&P guy that decided I needed to do a little conditioning. I realize that HIIT or some interval stuff is the way to go but I'm working on building the LSD base the FAQ suggests. I'm working my way through the couch potatoe to 5k plan found in the FAQ. When I first started my lower back would cramp up after a bit. I consulted the posts and have fixed that problem with the proper warmup and stretching. Now about mid way through my run my right side cramps a little bit and there is a little pain under my left shoulderblade as I breath deeply. Are these things to expect and that will go away with time? Is there anything specific to do while warming up to prevent these? Thanks.