Sharp pains in head + dizziness, don't last very long

For about 6 months, I have been having sudden episodes where I will get a very sharp spike of pain in my head, usually on one side close to the front but sometimes it will be closer to the back, that last between 30 and 90 seconds. The bad ones make me dizzy and my eyes lose focus. It started off only happening about once a month for the first 3 months or so, then the next 2 months a couple times a week. This last month it's been happening a couple times a day normally. I also have been having dizzy spells as well as having difficulty speaking. I will mix up syllables in two words, combine 2 words, have problems coming up with a word, ans stutter. I have had chronic pain for about 9 months. My doctor thinks it might be Fibromyalgia. I'm seeing a rheumatologist at the end of this month. I don't know if that might have anything to do with the head pains.