I'm wondering if there's something wrong with my PF
This is possible, but unlikely. Much more likely are:
1) bad cables- if you've tried different pedals, this may mean that you've also tried different cables, but if not ….
2) bad connections – squirt a bit of switch cleaner (from local electrical store) onto the various plugs and work them back and forth a bit.
If these fail, contact firstname.lastname@example.org