After winter, I really train either hard or long and sometimes both. But in order to survive all that riding, I began to eat a lot in order to have energy for the rides and then to recover after the ride. So my weight increased. From 113-115 lbs in winter, I am 120 now. Today I got my period after months without it.
I was sorry to gain weight but maybe my body is supposed to be heavier and healthier than thinner and periodless.