last spring the leader of a big band that I play told me I was the lead player. I've never had the range for playing lead so I started using the Thiecke Method exercises plus playing as much of page 121 of Vizutti's book as possible. I do this practice routine at least 5 days a week and my range has increased to a usable D above high C [F and F# in my practice room]. Sunday about half way through the hymns something strange happened to my upper lip. It feels like I lost the meaty filling on the left side of my emboucher. it is uncomfortable [not too painful] but really strange feeling. My right side of the upper lip feels the same it just feels like on the left side that the stuffing of a pillow has collapsed. I don't know if I should put the horn up for a week or so or to keep playing. My upper lip doesn't look any different but sure feels strange. anyone else experience this?