Does anyone else constantly think about dying?

I don’t know if it’s just me but as im approaching senior citizen status every day I think about dying. Is it gonna be painful is it gonna be quick? Life has gone by so fast and it’s not slowing down. What does it feel like to really be dying knowing you won’t be able to enjoy life anymore? How quickly will I be forgotten? Although I’m pretty healthy it is inevitable that death will happen sooner rather than later. Am I the only Gen X who thinks this way? Its a little depressing and scary at times, or am I just thinking too much about it?