My boss (a Senior Sales Representative) has told me to pack up his office and all three bookshelves for an office move. I am his Executive Sales Support; a Print Production client liaison for his account with a major publishing company. I've worked at that capacity for 3 years.
I am a healthy 57 year old woman (a dedicated exerciser) but have recently been dealing with some arthritis in my mid-spine area. The doctor's orders are to stop lifting and carrying heavy things. I have even had to start carrying my computer, etc. In a bag with wheels.
I hate to say "No" to anything. I am not a diva. I'll roll up my sleeves with the best of them!
What can I do without threatening my value as an employee?