Devious.......please do see a doctor.
When I was pregnant I kept a diary. So after reading your post, I got my diary out, to see when I first felt movement. I guess it's different for everyone, though.
13 weeks- Had my first ultrasound. That's when it all truely became "real" to me. Changed me in ways I can't even tell you.
16 weeks- Felt my first flutter. I described it as a butterfly flapping it's wings right below my belly button. Felt it 3 x's that day.
17 weeks- Stopped feeling movements. Was in a panic. Doctor said not to worry....that it was normal. Could be to the high volume of amniotic fluid.
18 weeks- Feeling movements again. Only now it's more like someone tickling me with their fingertips, than a butterfly.
FAST FORWARD TO WEEK 22
From this point......I could feel her a tremendous amount. She was very active. NOT constant......but alot. As time went on, I found out I could get her to move by doing things such as singing to her. So I would sit in a rocking chair and softly rub my tummy while singing. As my pregnancy progressed, her and I even played little games, where I would gently tap my tummy and she would follow my movements. It sometimes took awhile......but she seemed to move towards where she knew my hand was. This is a VERY bonding time....and very beautiful time.
I always needed the assurance that she was ok. So during her long rest periods, I would get all worried. I also figured out that when I would drink something ice cold, she would move. (no kiddin')
Anyways.......please do make an appointment with your doctor. Give yourself the peace of mind you are so seeking.