Yeah breakers and GFCI receptacles go bad. But first, a few basics. Is it a GFCI or AFCI/GFCI combo breaker? Do you have any other GFCI receptacles on this circuit? They can cause nuisance trips. Is there any exterior receptacles being protected by this breaker? Lighting, receptacle on outside wall, or on an outside pod?
Keep in mind GFCI's don't trip on overload, as they only trip on....well....Ground fault, or a minor difference in the current between the hot and neutral.
Keep in mind GFCI's don't trip on overload, as they only trip on....well....Ground fault, or a minor difference in the current between the hot and neutral.