Ah, well, sounds like borderline migraine symptoms. I've ended up with a migraine twice now when my meds were adjusted, probably because relaxing blood vessels tend to be bigger. Also, I am under way too much stress between full time work and this hypertension issue with my pregnancy.
The fatigue has mostly gone away as my blood pressure has been brought down, so I think it was the hypertension wearing me out.. what's left is about what I expect even in the 2nd trimester. And any headaches faded as the fuzziness did. Did your symptoms go away as you adjusted to the dose, or are they still bugging you?
1st son, induced at 37 weeks due to pre-e, born 6/18/10.
2nd son, c-section at 37 weeks due to hypertension, born 1/15/13.