all my originals have died of except one blonde guy is 69 he is weakened and i cant heal him how do you do this when i drag a healer on him the game tells me im trying to breed them also is it normal to die at this age
and one woman was caring for a baby and i came back and she was dead and no child/ explanation.

anyway apart from this guy i have 3 30-50 ish old 1 20-40ish one teen one kid 1 baby seven puzzles solved am i doing terrible
my villagers are all good at breeding and fertility is @ level 2 yet they are pretty much always unsucessful after breeding?
and finally i keep hearing wishywasy sounds when no one is near water

Weakened villagers are not sick, so they can not be healed. Mostly they just need some rest or (a lot of) food or water.
When nursing mothers die, their children die with them.
Villagers do not breed if they are hungry or sick and sometimes it just takes a lot of times breeding to get a child.
The wishywashy sounds? May be they are drinking from the well, maybe it is the waterfall.

How is your food supply?
What level are you with farming?
Which puzzles have you solved?

You can only heal a sick villager. Weaken is not sic, just close to death. If you do not have medicine 2, then he is close to his life expectancy.

There is a certain puzzle that well help your villagers breed more successfully, other then that, the higher level of fertility and the skill will be the main determination.

I HAVE LEVEL 2 MEDECINE
LEVEL 3 farming
Level 2 breeding
level 2 spirituality
level 2 science
level 2 building

To help with the food situation, keep as few villagers as possible, unless it is vital to make more. the fewer villagers, the less they wille at until you can get Level 3 Farming. Once you have level 3 farming, then you can keep getting babies until you reach the max population limit, for PC it is 90.

if the villager isn't weakened AND elderly, just keep feeding, feeding, and watering him/her, and keep them away from research and building until they recover -- those are hazardous jobs