A slight sidenote: Considering your age I think that your memory is at least slightly affected. When I read your report the first thing I thought was "And that's all she/he is frightened of?" That doesn't mean that your observation isn't worthy enough, but for your age - for me - you seem to have still a very good memory. If it wasn't like that you would have reported other things than 'I can't remember taking my pills'. Because severe damage of your ability to remember your own biography would show a more desastrous image.

Your worries shouldn't be taken lightful but in my opinion you seem to be lucky as it could be worse.