As of late I have been having a hard time hearing myself during rehearsals lately (duo w/ Piano, trio w/ guitar, drums). I know that I am in the worst position to hear myself. I play a 15 years old German laminate bass. It projects well and no complaints with other players or audience. I have been using an amp (as a monitor) just loud enough to hear myself in these situations. In small rooms it is the worst. Is it just me or do I really need to get my ears checked out? Any advice would help.