low on gas or ? 94'bmw 740I?

driving down small grade, ran low on gas (low gas indicator just came on, it still had 45mi left) & got a rear flat tire at the same time, rumbled to stop, added gas tried statring, sounded flooded, let set overnight, added more gas tried starting this time would only turn over, pulled gas line turned over no gas pumping put back together. checked pump fuse - ok