In stochastic processes, chaos theory and time series analysis, detrended fluctuation analysis (DFA) is a method for determining the statistical self-affinity of a signal.
Sore throats caused by tonsillitis or streptococcus may trigger a canker sore even after the initial throat condition has subsided. Also known as an aphthous ulcer, canker sores are painful and unsightly, but they are not contagious.
Now I have what feels like a canker sore on the right side of my throat at the base of my where my tongue hits when I swallow. I constantly feel pressure in the middle of my back and have recently started having heartburn terribly.