dear Safa
i don't know a site like u asked but here r some useful tips
1st, try to relate the pathology of the disease to the signs and symptoms like to understand why these symptoms happened in this disease.
2nd, when studying try to
imagine or visualize the symptoms and signs you're studying like if you read "hemoptysis", imagine someone coughing a bloody plegm. this point is a scientific fact proved by experiments, that the brain memorizes things better this way.
smiles