My brain is rejecting WILD ?

[Shiznit]

Hello everybody, I've been always LDing using the MILD technique, though I have been always trying to WILD but always fail because of nothing but my brain do reject the symptoms ( maybe ) . As I start to get a SP I feel like my brain sends a message to my heart and it starts beating hardly, I can feel something like a bit of adrenaline moving through my body which makes the whole process goes back to zero . Am not sure why does my brain do that, from the excitement or just because its new process to the body and it needs time to get with that new feeling . Today, I'd tried to get into SP as deep as I can, I started to hear some noises, I cant move my body and I was about to get in dream state, I tried to hold my brain from doing that process as long as I can, with no further resistance, I felt the beat of my heart ( the same when you get excited or scared ) and I woke up . Is it my brain, or its just me having more/less focus, or what ? Help will be appreciated