I have been taking 50 mgs of mirabegron for about 3 months now for OAB and it is working well but for the last couple of months I have been feeling very low and could burst into tears at the slightest and have lost all my motivation. I also seem to be tired all time. I changed to taking one pill every other day, for the last week, to see if that makes a difference. It's still working, luckily. Has anyone a similar experience?