Periods

So starting in January 2020 my periods would come every other month (which was weird for me because before that my period was very regularly. Also i’d like to add in that from May 2019-Dec 2019 I gained 70 pounds and still haven’t lost that weight) Then in July 2020 I had my last period until December 31 2020. From Dec 2020 till March 2020 I was having a period every month regularly and now I haven’t had one since then. I’m wondering if I should go to my PCP about this because it’s really affecting me mentally. Any advice?