Hi cowgirl,
persevere with it. I'm doing the VLM, I hadn't run seriously for a couple of years so lost all fitness and put on quite a bit of weight. I did a bit before Christmas but then over indulged and so had to start again in January. My first runs of the year were hard, breathlessness at the very hint of an incline being the main problem but that was a lack of rythmn and a lack of fitness - in just 2 weeks I've got to the point where I can run 5 miles quite comfortably.
Your fitness will come back really quickly, I went out on Monday this week dreading the whole breathless, no rythmn, no real enjoyment that I've had since I started running again but it felt great - it felt effortless and the further I ran the easier it got - I was tempted to run further but left it at the 5 miles I'd planned. Since then I've done a 4 mile speed session and another 5 mile run and really can't wait to get out again tomorrow (today is a rest day
)
Big test at the weekend as I'm scheduled to run 7 miles on Saturday but I'm pretty confident it will be enjoyable although no doubt a bit tougher as I go over 5 miles...
I'd say set yourself a schedule for the week and however hard it feels do the miles - quite quickly it will get easier.
Good luck!
NBFS