Hi Dave, thank you for your reply.

i do think about taking time off sick but I'm the one managing the cover for the high sickness rate, mainly due to stress!!  I'm an optimist too so always thinking the next change is going make work less stressful and I do still like my work , so I keep going , trying tweak things in work like changing hours etc 

but maybe, like you say about becoming grumpy with colleagues, I'm finding that too so I should go back to staff health to think how to improve things or be more honest with myself and boss with how bad things are  :/  

thank you for listening 

Aza