I Had 6th Nerve Palsy In My Left Eye. Dr

I had 6th nerve palsy in my left eye. Dr told me it would heal in 6 months. It's been a little over 5 months and I can move my eye and see fine however I've got a headache and my right eye has a strained feeling behind it. Is this because I'm in the final stage of the healing process? I saw my dr last month and he said everything looked fine