Self test symptoms and conditions

I was on 5/10 lotrel, a mild dose over 3 months. I took myself off of the drug and learned to relax more, and have a better diet and exercise more. I felt weird where I could not focus on my priorities, and the way the medication made me feel made me think of it more than I wanted to rather than life. I am normally a no headache person. While on the medication, i had horrible headaches where I had to take Excedrin migraine to get over it. My skin after taking it for awhile became dry and itchy. I had dark circles under my eyes, which was new. My knees and feet and hands became ice cold. I think it is because I believe that my blood pressure the way it was, was what my body needed, and maybe there was not enough circulation with the very low 117/60. My normal and feel good blood pressure is about 140/85. I am happy with that and will keep it. Also wild at normal 140/85 my blood sugar is normal. when I took the medication and it dropped to 117/60, my blood glucose rose. My body was releasing glucose because it was saying, hey something is not okay here. I think the drugs are bad, and now I eat organic vegetables, no coffee, no sugar, protein meats, and soy milk, unsweetened almond milk, walnuts, blueberries, whole grains. No white bread, no sugar, no soda, no fried food, no white potatoes, no white rice. My range is now 120/70 to 140/85 when i am rushing around. That is normal. I think medications change your body chemistry. When my skin became itchy and my extremities cold, and my body started shaking and freezing and sweating, it was from the pills. if you want to know you readings, don't go to the doctor. Buy a self test BP machine, Glucose reader, cholesterol meter. My doctors cholesterol count was 100 over another text i had at a free clinic. Maybe they cheat the numbers, who knows, to make you think you are sick and bring you back. take care of yourself, and get away from the fear and panic the doctors put you in. you are way better to see a natural nutritionist if you need help. Break a sweat every day!...that will help.

i have been on warfarin for the past six months and i am looking at getting a self test. looks like i will be on it forever.
my question is are the self tests worth having, and will it reduce the times i will have to go to the clinic for tests?
please help i am a bit stuck