Feeling better, but peek flow still low

[REWleices]

Hi all, after many years of well controlled symptoms on seretide recently I had been really struggling with 2 hospital trips. My asthma nurse suggested swapping to fostair 100/6, but that I shouldn't need my ventolin anymore and I should go back to the GP if I still have symptoms after 5 days. I feel much better since the swap and am not experiencing any symptoms but my peek flow is still low which was worrying the nurse. I'm wondering if my peek flow will come up over time or do I need to revisit the Dr?

[Superzob]

The medical profession likes numbers and tests, but they are simply a guide to treatment. If your treatment is making you feel better, then does it really matter what your numbers are?