The sweats are caused by your body getting rid of all the extra fluid you had when preg - your blood volume nearly doubles I think by the end, so all that water has to go somewhere.
DH def sounds infected. I'd see if you can get to an OOH GP as your MW will prob just say 'see your GP' & you could be taking antibiotics already. It might be a blocked pore, a cyst or due to a tear you didn't know you had. Could be an allergy to the pads??! Can you switch back or have you used those pads before?
belgrano got a little snot monster here too, although the saline spray, antibiotics & Paracetomol seem to be helping.
We had a feed just before midnight then again at half 1, then 3, then 6 then 9.45. Not huge amounts of sleep between, esp.as he was going 3-4hrs at night until recently, but better than being the hospital at 5am & getting about 2.5hrs sleep total like the night before.