I remember you posting on this topic some while back. This is very interesting. I am just curious, how on earth did you figure out this was the cause? Was it just trial and error with the Proton Pump Inhibitors (meds to reduce the stomach acid right?) or were you having other signs or symptoms related to aspirating, or is there a special test they do to diagnose this?
I don't suffer from night sweats while on IV's but I can say that most antibiotics (oral or IV) increases my heartburn from occasional to ongoing while on them, perhaps it could be that IV's aggravate your initial problem. Of course there could be hundreds of other causes too. Some side effects from IV's I have had are rashes, peeling skin, once my one pupil dilated...but no night sweats.
Either way, glad your resolved your problem.