It sounds to me like one that KJ wrote.
wen

If KJ can't find it, I can post it here (or jb, if you'll send me your
email-google cuts it off, I can send it too).

Smokie Darling (Annie)

Here it is:

Dear Loved One,
I am sending this letter to help you understand my feelings as I deal
with arthritis and the changes it brings to my life.

I am scared. I don't know what the future holds for me. Will I end up
crippled and in a wheelchair? Or will I be one of the lucky ones who
have very little joint damage. If you find me being quiet and
reflective, please don't think I am upset with you. I am trying to sort
out my fears.

I am angry. Arthritis has taken so much away from me. I can no longer
do many of things I enjoy doing. I sometimes have difficulty just
completing simple tasks. If I appear angry please understand it is the
disease I am angry with, not you.

Please don't assume you know what is best for me. Arthritis has
affected my joints, not my mind. I am capable of making my own
decisions. If I make the wrong decision, it is I who has to deal with
the consequences.

I still want to be part of the "gang." Please continue to invite me to
participate in activities. I'll decide if I am capable of it. You may
think you are being considerate by not inviting me to go ice-skating
with everyone else, but it hurts when you exclude me. Maybe I can't
skate with everyone else but I can bring the hot chocolate and watch.

Don't tell me how Aunt Martha cured her arthritis by drinking vinegar
or any other supposed remedy. I have done much research and I keep up
on current treatment options. I speak with my doctor regularly, if
there is a possible cure out there, I will know about it.

Please don't tell me you know how I feel. You don't. Don't offer me
sympathy; I don't want your pity. But do offer me support and
understanding, which I appreciate.

I know sometimes I look perfectly healthy, but looks can be deceiving.
Please understand that I am dealing with invisible pain and a lot of
fatigue. Even on a good day I feel like you do when you have the flu,
tired, achy and sore. Please keep that in mind.

I want you to know that arthritis moves around. Just because I climbed
the stairs yesterday doesn't mean I can do it today. Yesterday my
shoulder was throbbing; today it is my knee, who knows what it will be
tomorrow.

Finally, please remember that I am the same person I was before
arthritis; arthritis doesn't change the heart and soul. I still laugh,
I still cry. I still love and I still hate. I am me, I am not my
disease. Please continue to love me just as you did before. I need lots
of love, understanding, support and hugs, just like you.

With love,
Me