Some companies have a qualifying period but when you are eligible, consider filing for "intermittant" FMLA, Family Medical Leave (Act). BP is a qualifying diagnosis. It will give you some the days you need to take care of yourself, for appointments, and therapy without repercussions or using up sick days while protecting your position. Contact HR to find out how to apply. You do not need to disclose to the employer the diagnosis, only whom their FML is through do need to disclose it.

Do what you need to to take good care of you and hang in there. I know it is harder some times more than others to go in. Sending big hugs meanwhile.