Worst period pain in ages: yes, self, that is because you are currently on less-than-half-dose ibuprofen (because mefenamic acid supply problems; because insufficiently regular GP appointments; because lack of executive function/stubbornness combining to (1) prevent making a sooner appointment and (2) prevent buying more ibuprofen).

Really truly honestly there are reasons you are on every single med you take, really, and skipping any of them leads to you feeling worse, and that is why you still take them even though you resent it. Make NSAIDs a priority in tomorrow's GP appt, yeah? xx