That's a scary story. Glad you are OK. More expensive helmets are not necessarily better; they look cooler and have more vents. Get one that fits properly and don't keep the strap too loose.
And that really windy day was last Tuesday. I was scared ****less going down Fair Oaks over the train tracks. I didn't think it was *that* windy nor did I expect a small overpass to be so frightening.