Hey crazymini,

I get very similar experiences when trying to wild:
i have almost like painful heartbeats,
Don't worry, your hearing just becomes more sensitive to your body (or something along those lines) basically you are just hearing your heart beat more.
and my eyes start to water
I get this and my eyes start to spasm and try to open, I found sleeping on in my preferred way (on my side) solved this.

The HH, you can either focus on it and 'listen in' and it should become more intense at which you will enter the dream (it will form around you). Or you can ignore it and allow it to progress by itself.

Well done, and if you have any further questions just ask!