"The tightness of the foreskin is a safety mechanism that protects the glans and urethra from direct exposure to contaminants and germs. The tight foreskin also keeps the boy's glans warm, clean, and moist, and when he is an adult, it will give him pleasure. As long as your son can urinate, he is perfectly normal. There is no age by which a child's foreskin must be retractable. Do not let your doctor or anyone try to retract your child's foreskin. Optimal hygiene of the penis demands that the foreskin of infants and children be left alone. Premature retraction rips the skin of the penis open and causes your child extreme pain. There is no legitimate medical justification for retraction. The child's discomfort is proof of that."http://www.mothering.com/10-0-0/html...rcson103.shtml
My last son was about 23lbs. for months. I've stopped weighing him except for now and then out of curiousity. I can see he is developing physically and mentally and is steadily outgrowing his clothes no matter what the scale says.
Those charts are for formula fed babies, unless they are using the newer breastfed baby ones. And even then we can not "force" them to gain weight. Society is so obsessed with weight gain and weight loss. I guess your son forgot to read the textbook that dictates how big he Should
After reading about how flouride drops can cause thinning of the bones I'd nix them. A google search will yield information on the controversies surrounding the practice of administering them.
You're doing great questioning going with the flow.