I've had a few ocular migraines over the years, the first was about 10 years ago, they usually happen about every 12-18 months, last about 20 mins then go away. However this weekend I've had them every day, and I'm currently having my second one in a couple of hours. It starts out as a small disturbance in my vision, difficult to pinpoint at first, then grows until about half my vision is affected. The disturbance is like a shimmering/mosaic pattern, a bit like when a TV signal gets interrupted, and I can't see things that are in the affected area, which is usually in my periperhal vision. For instance I am struggling to type this as I can't see all the letters on my phone keyboard at once. This one was particularly worrying when it started as I was driving; I've had to pull up on double yellows until it passes as I wasn't safe to drive any longer.
Has anyone ever had a sudden increase in frequency of attacks like this? Did you see a doctor and what did they say?