I've been working 9 hour shifts 4 days in a row in a hotel kitchen. I am a kitchen porter and have been on my own for these 4 days. These last 4 days there have been over 200+ people on the restaurant and on each day I've walked according to my pedometer 10 miles each shift. I am dreading the next two days as I'm physically exhausted. Would this situation be appropriate to call in sick or do I bite the bullet and go for another two 9 hour, 10 mile shift?
I reside in the United Kingdom, I don't need to provide any doctors notes to get a day off.