Funny, and this is me being a support...... went Nami in one game, mid and top fed hard..... kassadin then proceeded to slaughter everyone. Then, game 2, nami again, and mid fed a heimer, top lost hard to a trynda and kha...... bott lane in first game was like 6-7 kill for adc, 1 death, and I was 0/7ish.... 0 deaths, 7 assists. Then kassadin went on a slaughtering spree and my deaths went up and up, same as everyone elses..... 2nd game i was like 0/7ish again with 0 deaths, 7 assists, (cant remember for sure, but if i had any then it was only 1 or 2) the adc was like 3/1/4 cause the jungler was coming bott to help and get fed too.
Bott lane both games were doing amazing until having to deal with what top and mid were almost spoon feeding.
Trust me when I say, you may have had bad luck, but bott lane for me has had next to no issues...... albeit fairly slow after the enemy bott lane decided to not even put a toe out of line anymore because we would have been there to step on it.