June, I do sympathise with you as I know what a worry it is when our fur babies are poorly. However, it does sound as if the injections have started to work, although antibiotics do take a little time to kick in and do their stuff, so try not to be too impatient for results. I do hope Benji is feeling much better tomorrow so that you can both enjoy his birthday and I'll be thinking of you.
Hugs,
Carolynb x