I am 48 irregular cycles with regular bleeding. once completed i have a brown discharge that gets heavier after orgasm. should i be concerned?

Here are some ...: Is this pattern of menstrual lingering new or a long-term usual one of yours? If regular, it may represent tapering effects of period; if not, seek pro-evaluation and counseling soon. To ultimately solve such mystery, bring the info on its onset, degree, duration, interval, evolution, progress, & resolution over time to gyn-doc for analysis, physical exam, & tests as needed so to deduce Dx for Rx.