Hello
It could be possible that his body is trying to pass a kidney stone. If the pain is tolerable, he can probably hold off for a bit to see if it passes. If however, the pain is severe enough to cause him to lose sleep or do daily activities, if he is running a fever, or has blood in his urine, he may need to be seen sooner rather than later.
The tongue swelling wouldn't be related if this is a kidney issue. The first thing I think of with tongue swelling is an allergic reaction of some sort. Has he tried a different food or anything lately?
If he does decide to be seen sooner than his insurance kicks in, I'm sure if he explains this to the doctor they will do minimal testing in order to find out what is wrong, and since he is actively working, they will most likely be able to come up with a payment plan that he can live with.
Kerry
Kerry, RN
Please click the accept button if this has helped you. A bonus is always appreciated as well.