Thanks for your query.
I will try my best to provide you with best possible professional recommendations to your questions.
Menstrual irregularities, excessive bleeding, amenorrhoea are very common side effects. Incidence of amenorrhoea increases with increase in the duration of it's use. Return of fertility
can take upto 6 -30 month after discontinuation.
Generalized weakness may be due to tonsillitis
. For tonsillitis i advice you salt water gargling and only symptomatic treatment and no antibiotic as usually it will be viral in origin.
Fertility usually occurs after 6 month to 30 month. If you are planning to be pregnant I advice you to stop this drug.
Yet again, I do hope that you have found something helpful and I will be glad to answer any further query.