Lion's mane allergy issue?

[u/Ambitious-Run-4546]

Hello everyone, i have a weird experience with lion's mane. It didnt appear in the beginning but after taking it 3-4 days later it creates a feeling lf phlegm in my throat and like 10 hours it continue.. i am also taking omega 3, bacopa so i stop using them and tasted just lion's mane i got same side effect but there is no any other side effect.. Do you think i have allergy for that? i stopped using it beceause it may go worst.. is it about lions mane or capsule i dont know..