Caught a cold

I caught a cold last week.
I didn't see a doctor.
My fever went down soon but I can't stop coughing.
It is worse than ever.
I can't sleep well.

If I don't feel better, I will see a doctor.　
or
If it keeps going like this, I will see a doctor.

The Japan National Health member's personal expense  is 30％ the cost of medical care.
I feel thankful for that.
I'm living in a comfortable environment.

Caught a cold

I have caught a cold since last week.
However, I didn't go to  see a doctor.
My fever ?? went down soon but I can't stop coughing.> I am feeling better now, but I am still coughing
It is worst ever.> It was the worst feeling  that I ever have had.
I can't sleep well.> I could not even sleep well.

If I didn't feel better, I would see a doctor.　>If  I am still feeling not well , I will have to see a doctor.
or
If it kept going like this, I would see a doctor.> If I keep on feeling unwell , I will have to see a doctor.

Personal expense ?? of the Japan National Health member is 30％ in amount of medical expense.??
I feel thankful for that.
I'm living in a comfortable environment( It's not wrong, but it sounds very odd for normal situations , as if your are an animal living  in a zoo).>  I am happy with where I live.