Is 8 weeks off work too long when had pleurisy and pneumonia?
If you are not fit for work then yes you need to keep your boss informed. In order to return to work when you are sick, you need a certificate from your doctor over-riding your initial sick certificate saying you are now fit for work. If not and anything were to happen to you as a result of coming to work too early, then your place of work will not cover this “accident” or “illness” with your social security stamps. On top of this your bosses could be sued by you in the eventuality that you came to work and were still ill and subsequently got worse. So for their sakes as much as your clean bill of health you need to stay off work until absolutely clear.