Not diagnosed yet | ADHD Information

Hello.  Im so glad I found this site.  You all seem very knowlegable about Adult ADD.  I am 31 years old and will be starting Nursing school again in the fall.  I have an appt. with a Psychiatrist next week to hopefully help me with this problem.  I've known that I've had ADD throughout my early child years, however, my parents refused to believe in such a disorder and I struggled tremendously throughout school.  I have attempted Nursing school once before and struggled so much through it that it nearly gave me a nervous breakdown.  I had diarreah and vomited everyday throughout nursing school.  I had to quit because it got to be too much.  I could'nt concentrate on my work.  I could'nt stay focused to study and I couldnt figure out why everyone else was doing so well.  It was so hard for me to sit and pay attention to my lectures.  I would daydream through most of the day.  Today I have day to day problems such as focusing on what I should be, getting organized, sitting down long enough to watch a movie.  I always interrupt people and finish their sentences for them.  It all boils down to now that Im going back to Nursing school I am ready to get help so that I can get through this.  RIght now I am going to get my LVN liscense but it's my goal to get my Nurse Practitioners in the long run.  I have taken all the online Adult ADD tests and score so high on them as having adult ADD.  A lady who is just like a mother to me has a son with ADD and Autism.  He was on Ritalin 20 mg three times a day.  He was admitted into a boys home and for what ever the reason didnt need the Ritalin anymore.  My friend knew of the problem I was having with ADD and gave me the rest of his.  I know it was'nt right to take someone else's medicine but I was willing to give it a shot as I was too embarrased to go to my Dr over this.  She suggested that I start out on low dose of 10 mg in the morn and afternoon.  I did and I really didnt notice much difference so I increased to 20 mg in the morning and afternoon and the results were quite amazing.  I was able to focus on the things I should be.  I was much calmer.  My mood was stablized, I could read without distractions.  It worked so well for me.  My question is, should I take all my tests that I have taken online about Adult ADD and tell him about my experience to the Ritalin?  I really need some advice as I am so new to this and I am still very embarrased and uncomforable going to the Dr. about this.  Please help in any way you can.  I really want to make it through Nursing school this time.  Thank  you very much I would feel out your doctor....If you were not comfortable enough to ask about the ADHD to begin with maybe you don't trust your doctor. My gutt feeling would be no... Thank you Shaggy.  I will do just that.  My appt. is July 6th. and I hope it goes well.  I want more than anything to make it through Nursing school and I know that I will need medication in order to get through it.  I'm wondering if Staterra might work.  I'll find out tomorrow.  Thanks again.