Sorry, shoulda followed up. PG does this to me. If the % PG is low it just takes longer to have gut problems. Try VG juice without PG. Vaperite sells no-PG juices. Or DIY some yourself. I can handle maybe 5% PG from flavoring, but not much more than that. Cinnamon will also give me loose bowels after a bit. PM me if you need more help/explanation. Good luck!