I was out spearfishing and was diving to around 15m, after a few dives my sinueses gradually got worse and worse to the point i was diving to not much deeper than 5m. I saw a big coral trout down deep, being the stubborn person that i am i pushed myself down, the pain was never that great so i kepts going, suddenly no pain at all, great i thought and shot the fish and came back to the surface, on my next dive as soon as i left the surface my mask started to fill up with blood, after resting for half an hour on the boat i tried to dive again only about 3m deep and blood began to flow again, ive learnt my lesson, i wont try and push through the pain again. I was wondering if anyone could please tell me what has actually happended and how long i should wait before i dive again, i have already passed up a dive trip its been about 3 weeks now, am i right to get back into it? Thanks