i know how you feel a friend has almost the same injuries last year. i was suppose to go with him but i had been out in the sun all day and said i just could take the heat anymore....30 later he was airlifted.
last week i got a text from a friend who woke up in hospital...minor scrapes and bruises....
when i took my first ride with out a helmet, we stopped after 45 min for a break and talk to a friend. i was physically shaking, my thighs were sore from squeezing the fuel tank. i said that is it i need to go back, i put on my helmet and the whole world went back to normal.
only ride when you are comfortable, if any little part of your person says not to ...then don't.
where i live is a tourist island where drinking and driving is not enforced, due to this i will not ride at all down here during Christmas or spring break plus i make sure i have my bike and me home before dark... we live on the way to the popular beaches and i need to feel comfortable to ride. know all those drunks are coming from the beach does not make me comfortable.
Take your time buddy, doesn't mater how long you go with out riding just make sure your are comfortable when you do.
payers with your friend and his family... also with you
take care