Weakness in Legs

Does anyone else have weakness in their legs before getting a migraine?? I have been getting more frequent migraines lately (I've had one nearly every day for 2 weeks). One of the new symptoms I'm experiencing is leg weakness. I decided to do some research after experiencing this, and I've found that migraines can cause leg weakness..although it's typically one-sided. I have weakness in BOTH legs. Is this uncommon? When this happens, I end up walking very slowly and it feels like my legs could collapse underneath me. Thanks in advance for your input.