I've been in my job now a few years. I always loved it but now I'm starting to dislike it. Yesterday was a particularly bad day, I work hard but the impossible is expected at times.
I would just start looking for a new job but I'm going through some medical testing at the moment. This could take another year before I know the results. If it is positive then I have another 5 years before I would have to leave work so in theory I could get a new job now. The only issue is if I'm symptomatic now and have to leave earlier then I won't have the protection I have now having been in my job over 2 years and could be managed our once they found out. I can't see the wood for the trees.