I had the same problems with Humira in the early stages.
I had a couple of falls, was rather dizzy & had a strange feeling down the left side of my body. I had to stop the Humira for 2wks while they done an MRI scan on the brain.
They found that the Humira was mimicing MS. I started the Humira again after the 2wk rest & I haven't had that problem again. As for the sinus problem I took some telfast, it helped heaps.
Hope they get you sorted out soon.
Mez
