医生,你好。我妈说话不清,走路不稳吃水,喝粥偶有呛咳,但喉咙没痰,心脏血压都正常。医生让插胃管后,喉咙疼,难受,喉咙口痰多痰腻,咳否出导致险些窒息身亡。请问,现在该怎么办?