People are relying on me at work for something that isn't my job. But they think this is my job. I am so ****ing disorganized it's not even funny.

After all of my pain in relation to my Doctor about getting my meds., I totally forgot to leave work and go to my appointment. Something happened at work that really bothered me. It's like I am not present most of the time. My memory sucks. I am seriously afraid I have a brain tumor or something serious wrong with my brain. My memory has been so horrible. I don't forget my appointments with T because I am used to going there. But I'm not used to going to my GP. I am so ashamed of myself even though I know I'm not doing this on purpose. I just want to give up. I am too embarasssed to call my GP.