I am torn between size 12 and 14 in the Define Jacket. I weigh 122 pounds and am 5’5”. The 14 gives me a bit more room in the middle area but is a little loose in the back (kind of looks fluttery). Also there’s a bit of looseness in the shoulders in the 14. Advice? I like the comfort of the size 14 but not the parts that look too loose. Ugh!