Thanks for choosing health care magic for posting your query.
From the description that you have given, it appears that you are having an upper respiratory tract
infection,mostly a viral infection. In absence of fever
it is highly unlikely that you may be having malaria
. Regarding your running nose, you can start doing steam inhalation and salt water gargles. In case if symptoms are bad you can start yourself on OTC anticholinergics. Watch out for fever. If thefever comes then you should get yourself investigated for malaria as you have returned from endemic area.
Hope I am able to solve your concerns.
If you need any further help in detail, I will be more than happy to help you.
Wish you good health.
Dr. Pooja Reddy MD