Hypochondriac help

It seems as if every single week I’m obsessively paranoid about dying. From breast cancer, ovarian cancer, and everything in between. I have no symptoms of anything, yet the thought of cancer is constantly on my mind. About a month ago I thought I felt a lump in my breast. I cried and stressed and lost sleep. I went to the doctor and she said there was absolutely nothing there, and that I needed to stop googling. But it’s like an addiction. Just the other day I uploaded my ancestry dna results to a random website I saw in a Facebook ad. After a few seconds, it came back with a LONG list of diseases (including cancers) I was likely to get but wouldn’t elaborate unless I paid (of course). That sent me way over the edge. At that point I stopped. I looked at what I was doing objectively and got a grip. I was stressing myself out over nothing, and needed to stop clicking on Facebook ads that were feeding my unhealthy addiction of cyberchondria. The internet is a dangerous place for people like me. I’m constantly struggling with fears of getting cancer and/or other diseases. I’m trying so hard to find peace, but I’m just really struggling 😞 I feel so bad for my husband. Literally every week there’s something new and I think I’m dying of something. I don’t know how to control it and I just really can use some help right now 😢