I'm a mom of a one year old and while trying to get back in shape I've also been mindful of my "mom posture". I carry my baby primarily on one side (left) and I think it's had it's affect on my progress. While doing curls, my elbow wants to swing out on that side. I don't have the issue on the opposite side. I feel like it's restricting me from progressing and lifting heavier. I can do 4 sets of 10 reps on my right arm no problem, but struggle to do half of that on the "problem" side with out my arm wanting to flare outwards. My arms have been the last portion of my body to respond to 3 months of gym time and its frustrating. Just curious if anyone else has this issue or has advice. Should I just lift lighter and be patient?