Winded really easily

Megan
I know someone posted a while ago about getting winded easily, but I'm starting to get concerned about it. Tonight waking to the car I got so winded I had to focus on my breathing to calm down (it's also extremely cold out so I'm sure that didn't help). It's happened walking my dog and even singing too. This week when my husband and I had sex I was so out of breath at the end that I had to lay there for a few minutes and just breathe, trying not to panic. I haven't called my doctor about anything yet, and I've read that getting winded is normal, but I'm thinking I should call to check about it... What do you ladies think? Has anyone asked their doctor about this?