I'm freaking out a little bit...I found bump on my pelvic area and now I looked it up and it says…

I'm freaking out a little bit...I found bump on my pelvic area and now I looked it up and it says cyst 😱 anxiety is getting the best of me to say the least. Can me not having my period last month be a sign of something? I tested negative for pregnancy test and I have had a iud for almost two years which helped regulate my period and lighten it a lot. I had all my pms symptoms moody, getting on my own damn nerves and breaking out but just no period and now I'm breaking out again and starting to get on my own damn nerves again, idk what the fudge is going on me with and webmd isn't helping 😫😭😢😵