hard to explain but its puzzled me for awhile tbh!
some ppl describe it as a stomach feeling but for me its not. not a throat feeling either just a 'sick' feeling? which overcomes you sometimes can overcome you like a sudden wave of sick feeling...which sucks

if i felt 'sick to my stomach' as they say and it was a stomach feeling id prob feel that way you do before you get d*. n* is just different to me, different to stomach pain different to d*
interested in opinions on this!