Understanding Post-Ablation Period Changes & Recurring Pain

Question
I am 37, I have 3 children, and my last period was on Feb. 11th.  

Around a year and a half ago I had ablation done due to heavy clotty periods.  I also had one ovary removed with a grapefruit sized dermoid on it.  My other tube was tied too because we wanted to be done having children.  

I still have periods but they are much lighter.  In October of last year I had severe pain for 2 weeks before and around a period.  This past Jan. 27th the pain returned and has not really left since.  An ultrasound shows that I have ademyosis and a small cyst on my one remaining ovary.  Now my OBGYN wants to remove my uterus and drain the small cyst.  My pain occurs each day and I am on Percocet.  The pain increases as the day goes on, but goes away when I lie down.  I have no pain while sleeping.  As I rise each morning I feel the pain coming on.  What are your thoughts?  Does ademyosis pain go away when lying down?  Does activity tend to increase the pain?  Can ademyosis pain go on this long?  It started on Jan. 27th and I have only had around two days without pain.  Some days haven't been as painful, but most have been severe.  I usually need a Percocet by 12p.m. and then another in the late afternoon.  Should I see a regular doctor to make sure my pain isn't being caused by something else that isn't female related?  Thanks for your input!

Answer
Adenomyosis typically affects women their 30s nd 40s. About 1/3 of women with adenomyosis are asymptomatic. The most common complaint is abnormal uterine bleeding but dysmenorrhea (painful periods), non-menstrual pelvic pain,  and pain on sex may also be present. The diagnosis is made histologically when endometrial stroma and glands are observed at least 2-3mm below the endometrial surface of the myometrium (from D&C specimens>. The cause of the pain is not known. Ultrasonography is not useful in the diagnosis of adenomyosis, but MRI can often help the diagnosis.  Hysterectomy has consistently been shown to be successful in treating and controlling the symptoms. Diffent women react differently. The pain can certainly go away when lying down, or can be exacerbated while lying down. If you have the pain every day, and it is getting unbearable, hysterectomy may be the way to go.