splash
Day 15 is soon near and that is when the body really begins to detox heavily!!! Those symptoms are from cleansing out toxins not the Lemon drink!
As suggested take a sauna or just steam your face over hot water if that is all you have available. Boil the water then take it off the heat and put a towel over your head.
Getting some early morning sun on your skin will help too.
Hang in there you are probably close to having a major shift.