ow to gain weight with lupus sle?

Hi, I'm 19 and have lupus sle, it keeps me from gaining weight and i'm beyond skinny. Right now i'm not on any medications for my lupus expect for blood pressure medications since my lupus is in my kidneys but anyways I want to know how to gain weight. I can't get out of the 80's and I'm sick of being a walking stick figure. Anybody knows how to help, and I'm 4'11 also. I think the medications I was on before stopped my growth, is there anyway that I would still grow or i'm I just out of luck lol
-Thanks

[Bluesky17]

Sorry I meant "how" in the title

[Nikodicreta]

Hey Bluesky17.
You may want to find out if there's any underlying
digestive and or G/I issues.
Things to look out for are food allergies, gut dysbiosis, leaky gut syndrome,
gluten intolerance, Candida etc.Please do research to see if any of your symptoms match any such conditions. If you need any info regarding testing let me know.
Another area that I would suggest that you look into
is your adrenals.Overactive Thyroid is suspect.It's good to check it and have ruled out.
Dr. Lam has a good tutorial on adrenal issues.
Just do a search. Some of these conditions can produce overlapping symptoms which could be a bit confusing.

If you're able to do some exercise, it will be helpful as exercise
will  -hopefully -increase your appetite.
Eat wholesome nutrient dense foods that are safe for you.
Hope this helps.
Post again or pm directly if you need more details.
Blessings
Niko