Viburnum Opulus vib.

Aggravation from lying on the affected side; in a warm room; evening and night.
Amelioration in the open air, from motion, also from pressure.

Sudden pain in the region of the uterus before menstruation.
A feeling of heaviness and congestion in the ovarian region, as before menses.
General heaviness and bearing-down in the pelvis, with heavy aching in the sacrum and pubes and drawing pains in the anterior muscles of thighs; could not sit or lie still on account of the pains.
Menstruation too late and scanty.
Light-colored.
Faintness on attempting to sit up.
The above symptoms generally associated with copious micturition, of pale, light-colored urine; often with constipation; stools large and hard, with cutting in the rectum and soreness of the anus.

Pain as if it would break during menses; usually < evening and a close room; > open air and moving about.