Mid back pain from squat max...

So I had 295 on the rack feelin very eager to tackle 5 reps equalling a amx of 340 on our school charts.  I got it and felt i could do more.  Ive never worn a belt and my buddy advised me i should probably try it at this wait as i was gonna do 315 3 times.  I said i never used it and didnt want it to effect me.  On my 3rd rep going up i felt uncomfortable and half way up my back took over as i was hunched over completely terrible form.  I racked it and my boddy looked at me and said that was awful looking.  The mid part of my back is rediculous in pain.  Ive iced it and no using a heating pad and gonna look into a friend of mine givin me one of her massages.. but is there anything else except the ice and heat i can use.  How long off from lifting...i HATE not lifting for more than a day and know im gonna only take a day off if i feel that ill be alright for lifting again after it.  any ideas...

Junior Majoring in Nutrition

hopefully ull be lucky and itll just be sore muscles. If not u could be seriously injured.

Im hoping for that...its not hurtin too bad with the heat right now though.  I shall see...think im gonna go set up that massage haha

Junior Majoring in Nutrition

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    That sucks..  Like iron raider said it could be serious...  Were you useing a belt, and what region does it hurt?  

    Oh i just noticed this is an older post. Oh well my bad...