We can guess and give ideas as to what's going on, but Granny is right. You need to go to the doctor.
These are also signs of diabetes as well Sounds to me that you need a complete medical work up and not advice from strangers who are not doctors (at least I'm not)
Good Luck and I hope you feel better
from what i'm learning, progesterone is a natural diuretic and in early pregnancy causes many trips to the bathroom b/c of this. Also, in early pregnancy, estrogen soars to an all time high, causing tender breasts. progesterone is also known to cause stuffy nose and headaches. I'm currently using progesterone cream (not pregnant) and the cream has amazing benefits but also causes headache, stuffy nose and frequent urination. So, if you suddenly have these symptoms, its very likely that you could be pregnant!
you could be pregnant.....i remember when i bought my HPT out of the blue, i was a little stuffy, and i should have known i was preg, cos i never get sick(i swear, NEVER!)