There are spaces between my lower teeth where air can go through, Anyone have advice?

I noticed about a week and a half ago that my gums were noticeably receding and starting to bleed in the gaps between my teeth and the gum behind my bottom front teeth felt like there were gaps in the gum right below the teeth. Then I went to the dentists yesterday to get a long overdue cleaning and I asked the dentists assistant about it and she said she didnt notice anything out of the ordinary apart from enflamed gums. But today it seems like there are tiny gaps below my front lower teeth where air seems to get through. Also anytime air goes through these gaps it caues discomfort. Is this really normal or is there something wrong? Are there any ways to reverse the gum recession to cover these susposed "air holes"?