DrugBuyers.Com: Where do I find the GRACE?!?

Ya'll I want to know how you all deal daily with pain and meds and family memebers and their opinions?
I struggle to keep what little bit of Grace I have, when dealing with one family member in particular.
Let me just say this, I have been sick and hurt for a long time. It is not uncommon for me to be in bed for days. I am not that close to my parents (per their selfisness), but have been close to my in-laws. My Father-in-law died so I only have her left.
She takes the exact same medications as I do coincidently. From time to time I have to be in her home because I need help with my two children, as my husband works rotating shifts of days,evenings, then nights. ANY WHO...She will question me often about my meds and what the Dr. has told me about the amount to take daily. I always answer truthfully. I have to say this too, I am a nurse by profession and she is in Cosmotology. Well, she always implies that the doses I take are too high and self- imposed, rather that physician. She has written me many times about it and it infuriates me!
When I ask her what the appropriate amount is, she always says "three a day is enough for anyone to take." She is talking about three 10 MG Hydro. What a joke. I can hardly make it on 6 a day. But what makes me so mad is that in a month's time we both use the same amount of meds, the exact same number! But, somehow she arrives at the conclusion that I take too many and she never includes herself in that category! I am so tired of it. I need strength to deal with it all somedays. The thing is, she takes it on a daily basis and I take it on the days that I hurt the worst, in the end, 90 amonth is 90 a month!
How do you deal with daily pain for ten years, kids and spouses that are immune to it all and then bare listening to someone lecture you. I call it down here, Preachin' to the Choir.
Anyone have any suggetions as to how to handle this? What would you say to her?
I have a TERRIBLE temper and that is why I usually say nothing, because when I open my mouth I go off and can't shut-up if I had to! So.....I pray for Grace.
I also think she starts this when I am there because I don't think she believes my pain all the time and she thinks I just put myself to bed to avoid being responsible. Just like I take vacations every week from reality! Whatever..And mind you she takes Benzos with hers and I don't, maybe the potentiation factor she gets would cut my doses down too, but we aren't all so lucky to have a doc you can call locally every month and pretty much place your order, picking from the menu!
And by the way, she has no joint issues or anything wrong other than the work she does and a muscle problem from repetitious movements.
Sorry, so long...I needed to VENT! Thanks Guys for letting me!
-K-