Quick tip for next time you need to worm, I've just done my grown up and girls and the weaned kids.
I too took the cat approach, in terms of get in, get it done quick as a flash and then get out! They will never even know it's happened!
I used the syringes for the kids as they only needed a small dose and I didn't want to risk it with a drenching gun.
However: another point, there is a video on youtube by Adam Henson from Countryfile showing the correct way to use a drench gun - worth a watch. It's part of a series called The Smallholder Series.
However back to my original point, the larger girls I straddled them as if riding them (but don't worry, I did NOT sit on them!) and then put my hand under their chins, lifted up with a scratch for them (they love a good scratch) and then went in down the side of the mouth and cheek. Squirt and done. Easy. \With the kids, if i sit on the floor of their pen they come over for cuddles and lie on my lap so used the same technique but smaller scale I guess!
As for the tummy rumblings, this is very good, only panic when you don't hear this. Ideally you would like to hear rumen noise and therefore movement every 1-1.5 mins.
Hope this helps! And hope the OH's back gets better soon!
McR x