I know how you feel... Seems like the whole kit n' caboodle starts to go funky all at once! I'm doing diabetes, fibromyalgia, hypothyroid and some other junk, too. I'm also on prozac for chronic depression and to help with the fibro.
You're welcome to grouse away here because we all understand. Something I can tell you about your family that may help. It's possible that they really don't want to hear that you may be ill or have health problems. This would indicate that you could get sick and maybe someday (gulp!) die...!!!! GASP! In their eyes you must stay the same old same old because you are their wife, mom, aunt, sister etc. and for their own security rationale you MUST remain 'fine'.
Basically, this is their problem. It happens a lot in families so you're welcome to vent and get support here and then you will be able to cope better at home. One of the good things about HW is that there are so many members with a wide variety of experiences and you can draw on their know-how to improve your situation. Because we share so many similar problems we can offer different coping mechanisms and for me that's the best part.
Hope you learn lots here.
"People are like stained glass windows: They sparkle and shine when the sun's out, but when the darkness sets in, their true beauty is revealed only if there is light within."
- Elizabeth Kubler-Ross