Should I exercise this morning?

I would usually do a DVD (step, aerobics) of sorts for an hour, quite energetic stuff. I haven’t exercised since Friday… I usually exercise 4–5 times a week and Sunday is generally one of my days.

However, I wrenched my shoulder muscle and I think it might have torn it slightly earlier on in the week, it’s been really painful but is beginning to feel better. I wouldn’t want to exercise today though and put it back to square one. I’m also feeling pretty tired because Theo is waking up at 5.30–6.00am at the moment every day and it’s draining me.

But I don’t know whether I’m just being lazy and should get up and do some exercise… What do you do when you feel like this? Would exercising make you feel better? Or do you think I should just have a warm bath, relax and rest given the shoulder injury?