I’m sorry to hear that.
Harrison Ford doesn’t look particularly tired to me in his recent movies (nor does he look too elderly, especially considering he’s 71 now).
What he does seem to be is grumpy. I miss the old charming 80’s Harrison. In all his recent movies like Ender’s Game and Cowboys & Aliens, he plays a mean angry hard ass. Seems to be his thing lately. Lighten up, Indy.