Good morning,
I will make this quick, because I am at work.
You are not alone. I see my sister in law a handful of times a year. If she sees not feeling well at one visit, she will make a comment at the next visit, usually along the lines of, "Im so glad to see you are getting better. You are looking much healthier than the last few times I saw you." I hate this and Ill tell you why. Today I can be fine and tomorrow confined to the bed. I look good today for a number of reasons....I found some really good makeup....I knew family was coming so I didnt cook or clean my house for a whole week so I could have enough in me for this visit....I took an extra pain pill today....Im learning to hide it better. I usually just say thank you and let it go, with her and others Im not close to. In all actuality, I am progressively getting worse each year, so I know her comments hold no credit. I have forced myself to not let it bother me for people I dont know.
On the other hand, those I am close to is different. I have shared list of symptoms and articles and threads and the like with my closest friends, husband, mother in law, mother and others who are in my support group. I find it is easier to feel like myself when I am feeling horrible if they understand more about the disease and can have an idea of what I am going through.
The other advice I have is to do just what you did.... post your vent session on here, call a friend and vent, call your mother and vent or your significant other. Let it out. I find that no matter how many times I let it out and feel better, there is always those down days or the days where you feel totally overwhelmed and the annoyance of these issues if more common.
Wishing you a pain free morning.