I have a node running with Tor running as a service and proxy=127.0.0.1:9050 in the bitcoin.conf file. Does it make any difference if I add bind=127.0.0.1 and/or bind=127.0.0.1:9050 to the file?
The -bind option listens for Tor connections on the address you give it, on port 8334 if you don't pass a port like your first bind syntax, so no, since the address is already connected as a SOCKS proxy.