Siman 168

(2.) When he was in Lemberg he was in great danger, for he was occupying himself there with medical treatments. And there was a long period when he was lying on one side and could not lie on his other side. Afterwards Hashem Yisburach performed wondrous and awesome miracles with him, and he began to recover somewhat. And suddenly in the night he turned onto his other side and lay on it, and said that his healing was not through the doctor — but that at night someone came and said to him: "The government has decreed upon you to lie on your right side." And he lay as was his custom on his right side [which for a long time he had been unable to lie on]. And that one who came to him in the night was the famous pious Rabbi, our teacher the Rav Rabbi Aharon of blessed memory of Titayev — a grandson of the Baal Shem Tov of blessed memory. And Rabbainu o.b.m. said that now the aforementioned Rabbi is a faithful friend to him with very great love.