I don´t feel ok/good/well
Today has been a hard day because I have a headache, all my body hurts and I really I don't want to do anything. My older brother told me that I have to rest and take medications suggest medicine that is supposed to improve my health, so I'm trying to rest to be get better as soon as possible. I think if I take my family's suggestions into account the suggestion of my family, I'll get well, that's what I want.
Just needes a little editing to sound more natural.