I can attest to that, my newborn at the time screamed into my ear unexpectedly loud and my hearing was affected for a few days.
Yup have occasional tinnitus in my left ear from one of my children screaming in it while I was holding them.
Never got tinnitus from it but it does make me lose balance fast.
I have the balance problem, too. A hearing specialist suggested that one of the bones in my ear was made of a spongy material rather than bone, which can cause it.