abnormal cycles

Hello ladies so I have an interesting topic for you. weight loss/gain and your cycle. So I had a doctor tell me because I was morbidly obese that I would never have a normal cycle.(plus I have a mirena) So I had surgery in 2017 for a sleeve gastrectomy to help lose weight. So far so good, Im down 70 pounds in 11 months from 430 to 360 from size 6x to 3x.....ok enough with the stats. So recently I began doing the Daniel Fast with my church on January 8th. Now here is the dilemma, my cycles have come since surgery, but sparingly and only for 2 to 3 days even sometimes just spotting for a few hours. So this current cycle started on January 11th. the problem is that here it is 9 days later, and Im still in a heavy flow stage😣. Some people are telling me that because I am on the new regimen with the Daniel fast, that my body is ridding itself of waste. for those who are not familiar with the Daniel fast, its strictly veggies, fruits, nuts, and all naturally sweetened juices or using honey. so very similar to a Vegan diet almost. So can anyone tell me if they have experienced this before or should I make a trip to the er??? Thank you for reading.