Dear , don't worry
Your report is normal .
Always low haemglobin is not the cause of weakness .
There are lots of other reasons which may cause all such problems.
So thoroughly have to examine and then evaluation , then treatment
Sometims postural orthostatic hypotension may cause all such problems , but need to find out
Next Steps
consult general physician
Health Tips
have Healthy diet, plenty of liquids, excercise yoga Pranayama ,