While on levlen ED I had no side effects as soon as I switched over to Yaz (drospirenone and ethinyl estradiol) I had fatigue moody angry and emotional but Yaz (drospirenone and ethinyl estradiol) is lower dose than levlen?

Different progestero. There are two different hormones in bcp. Though Yaz (drospirenone and ethinyl estradiol) has less estrogen than levlen, Yaz (drospirenone and ethinyl estradiol) has a different progesterone. When women have mood swings on bcp it is usually from the type of progesterone. Sounds like you feel better on the hormones in levlen, and it is a good bcp. Go back to it, or speak with your doc about a pill with the same Progesterone as levlen.