I think you already contacted astrologers,about this problem.
For Meena lagna,Sun happens to be sixth house lod.
So he is very bad..His exaltation is bad.
Sani is a papi for Meena lagna.
Sani exaltation in 8th is bad.
So,troubles are expected in Sun-sani antardasa.
You have to do penance for 3months.
Penance means lie down and do 10 rolling
namaskars daily chanting Om namah sivaya.
You can take rest for 4 mins after 5 rolling
Rolling namaskar means Anga pradakshina.
You ask the meaning from a temple priest. email@example.com