I am very sorry to hear about your crash, but am glad to learn your injuries are not life threatening. The site does a great deal to assist newbies such as myself. However, for what it is worth: Lane splitting between cars seems to be one of the most dangerous practices in all of cycling. Automobile drivers simply do not expect a cycle to be alongside where they may have looked just a second ago to see only a car. As happened to you, an open gap can close so quickly there is no time to react. I know most cycle crashes are caused by car drivers “not seeing”, but lane splitting between cars seems to be an invitation to disaster.
Get well soon and thanks for the site.