Anxiety

So I have health anxiety. I’m 19 and been on anxiety pills for a couple years now. I’ve been like this since I was a little, always worried something is wrong with me and freaking out when I feel anything abnormal. My absolute worst fear is cancer. Throughout my life I’ve thought I’ve had different cancers cause I’d feel something and immediately would think the worst. For example headaches make me think I have a brain tumour or I often feel my throat for lumps. I hate feeling this way and I swear the thought of cancer pops up in my head everyday. Does anyone else feel this way? Any advice?