Okay, I had the same problem with this website.. a lot of drama, rude post, etc.. but this website, all in all, is very informative. If you go on google, look up parvo in dogs they will give you the symptoms, how to treat it and how the pup will/got parvo.
You can also look on YouTube , parvo in pups! There is this real nice video with a vet and a pup.. its really informative!
I can tell you LOVE bear. You are giving him shots at whatever age blah blah! You want whats best and you will try everything in your power to do whats best! Cant get over the fact that you had such a young young pup! But now that he is 8 weeks, just keep a watch on him. Dont get too worried or sad about somethings you see because like humans, we all go thru some change and maturity.
And trust me! The internet is chaotic. . . You can think one thing of your pup, look on the internet and find out its something really bad, get scared but in the long run you were worried about nothin! Thats why I dont take much seriousness towards internet.. your vet should know what he/s is doing so leave the decisions up to them : )
Im so sorry for you lost.. I recently lost my grandmom.. its life and we all have to understand that though its so hard.
Good luck with little bear!