Thanks for posting your query.
Irregular spotting whether painless or painful indicates a hormone disturbance or a problem with the uterus or cervix.
It can be a temporary condition that resolves itself as with change of place, weather, stress etc
It might also be something that need treatment like underactive
thyroid, pcos, high
prolactin levels etc
It could also be due to a problem in cervix like erosion, polyp, tumour or from the uterus due to a fibroid, polyp, thickening of endometrium etc
In any case we have to find out the reason for this pattern.
You have not mentioned whether you are sexually active as
pregnancy complications can have a similar pattern.
It might also be due to some medications like
steroids,
contraceptive pills, IUCD use etc
Its time to meet your doctor who will help you to sort out this issue.
Hope this has helped.
All the best, take care.