The flutter's R the baby moving.. as for the tiredness, that is very normal, its ur baby telling u that u need to take it easy.. and for u to rest.
Congrats!
Yep, I'm almost 18 weeks and still tired, most of the time. ALso, I notice my appetite fluctuates, sometdays hungry, some not
The flutters, especially while resting is almost definitely your baby! Enjoy these tiny movements before they get too big and keep you awake!! The baby in utero usually sleeps when you are awake and moving (when you move, it rocks the baby to sleep)...and that doesn't change when it comes out! When you are still...the baby will awaken. Just as a newborn will awaken when you stop moving or lay them in a crib. This is a very normal time to begin feeling fetal movement!