In Pathfinder, how can my DM deal with my very high attack mod?

I recently joined an ongoing campaign with a level 8 fighter character and due to the amount of feats, weapon training, equipment, and especially buffs coming from the party bard… my character tends to have a stupidly high attack modifier that is stumping the DM because of their almost guarantee to hit. Hardly any other in my party (Druid/Bard/Rogue) come close to the attack rolls I manage to dish out. Which has been making me as a player feel kind of bad for just waltzing in with this seemingly powerhouse of a character, causing an imbalance difficult to deal with. He sucks in just about everything else skill and social wise.

Are there any good ways to combat a high attack mod?