Bed rest

I am 27 weeks tomorrow and my doctor put me on bed rest a couple of days ago due to what he calls moderate toxemia. My bp was high on wednesday but since bed rest its actally low and i was starting to swell, but thats improved too. He was most concerned by my weird vision changes and headaches. Said it can cause seizures. I thought you have to have protein in urine to have toxemia and my urine has always been fine. Granted i do have trouble focusing on work on the computer and start feeling bad after only 10-30 min when working, but is this overkill? I want to do whats necessary for the baby, but also want to still work if possible.