Help me with my panic attack during meditation Today when i was doing "space between breathing" meditation i experienced something strange which caused me to panic.
When i got deep enough in meditation, gradually space between my breaths expanded and my breaths became very shallow. I could no longer feel my breathing. Also i lost sensation of my body and awareness of environment. I entered a silent dark space which was very tight.
I felt like a vibrating round mass. The vibration gradually increased and also i felt a really hot sensation in my body. As heat increased i felt as if the space became tighter. Then i had the panic attack. My heart start beating very forcefully and fast. I couldn’t feel and move my body. I couldn’t find my breathing. It took me so long to find my breath and get back to awareness. I am so scared i cannot meditatie again.
I was wondering what was this sensation. is this feeling  normal. How can i avoide the panic i experienced
I would recommend learning &amp; practising meditation in a group, that has a competent teacher or monk, so you can learn to become fluent in the basics of meditation. 

As for your panic attack, it sounds like your mind was focusing more &amp; more on the space, thus lengthening the gap of the space &amp; shorting the duration of the breathing. 

Therefore, not only did your mind lose a soothing, comforting &amp; calming sense object (the breathing) but also found itself in a state of 'emptiness' ('diminishing ego') that it could not cope with; thus fear or panic arose; which is similar to a fear of 'death' people commonly feel. 

Ultimately, correctly practised Buddhism meditation should 1st develop a strong foundation of calm, which gives the mind refuge &amp; strength to develop more profound insights. 

Where as "space between breathing" (emptiness) meditation is taught by ambitious teachers who foolishly believe they will enlighten students more quickly.

The real Buddhist meditation path is something gradual &amp; natural and based on giving up desire (craving) &amp; positive &amp; negative judgments (rather than based on exercises designed to eliminate the 'ego' or 'self' prematurely; when the mind is not yet ready or spiritually mature enough).