"Regretted" is the past tense of the verb "regret," which means feeling sad, remorse, or disappointment over something that has happened or a decision that was made.
"LMK" (often written as "lmk" or "Lmk") is an abbreviation used in text messages for "let me know." It is used to express that the speaker wants the other person to provide information or updates on a particular topic.
"Ninty" is a misspelling of "ninety," which is the number 90. "Ninety" may be difficult to spell because some people may assume that they should drop the "e" in "nine" before adding the "-ty" at the end, which is not the case.
Aphagia is a medical term that involves the loss of the ability to swallow. The term can also encompass difficulty to swallow, as well as refusal to swallow.