spinal tumor? wrist & ankle numbness, facial pressure

For a few months, I've had some stiffness and weakness in my wrist and recently it has also made my ankle and leg occasionally weak and and tingling. In addition, I'm having some pressure on the right side of my face (behind my eye) - all of this on my right side. I work with a computer all day, so I thought initially it was just some carpal tunnel and possibly some nerve damage, but I was reading that a cause could be a spinal tumor and that concerns me.

I do have an occasional sharp pain my back when I turn sometimes, which usually goes away after a while, but it always seems to be in the same place. I also do have fairly bad allergies, but I am taking medication for them and they don't seem to reduce the facial pressure.

I went to a doctor who ran a few sensation tests and asked some general questions about it, but he wasn't sure what it could be. He had me do some blood work (still waiting on the results) and said to come back in a month if it was still bothering me.

Is it possible this is a tumor, or am i just overreacting? Thank you in advance...