Sounds perfectly normal to me as well. With my pregnancies, I seem to be exhausted, then fine, then exhausted for months. Some days (or even a week at a time) I am 'normal' (like I'm not pregnant) then other days it is downright awful with MS, tiredness, being cranky etc.

After the miscarriage it will be difficult and you are likely to worry, but the odds are good that in 33 weeks or so you will be holding your son or daughter. Just be supportive of your wife!! She knows her body the best so will be the best judge of any problems if there are any!

Good luck!!