Quoting TecoaJameson&Me:" It does kind of freak me out. Not to mention the pain n my lower back and the bruises. I hope it's nothing ... [snip!] ... to get goose bumps or wear a jacket in the cold jus maybe a thin zip up hoodie now it's an issue cuz I freeze. Anywho thanks!"
It could be that you're anemic. A friend of mine is and she bruises easily and gets cold really easily. As far as I know she wasn't on medication, but she started having that problem after she had her LO. But, for sure bring it up to your doctor so they can get to the bottom of whatever it may be.