Dd(17) has always had some variation in her cycle length but has always been normal (24-30 days). Recently she's had several short cycles ranging from 14 to 19 days. She has some mild spotting (old blood) just now a few days after her period has finished. Dr said nothing to worry about just now and was very dismissive. She's definitely run down, had COVID in Dec (but a normal cycle after) and a few colds but nothing particular significant.
Should she be pushing for blood tests? Or how long should she wait before speaking to GP again?