There is extensive literature out there just a google away on the consistent misdiagnosis and under-treatment of women, both as a general trend and for particular diagnoses like heart attack or ADHD. The dismissal of "It's not a woman specific thing" belies the truth that there are women-specific biases against taking self-reported symptoms into account and receiving proper care, and data-collection biases where there simply isn't as much or as sufficient research in how the same disease presents differently in women.
Similar data exists for other groups (for example, pain treatment disparities for black people, because actual doctors with medical degrees think black people have "thicker skin" or "less nerve endings"), but we can acknowledge several kinds of systemic failure of medicine to meet the needs of whole classes of patients without undermining the rightful complains of those individual groups.