Baby, my Maltese sleeps with me. She was fine all day yesterday, ate normally etc. Last night in the middle of the night, she crawled on my chest and was shivering uncontrollably. The room was warm and was the same temperature it always is. It’s never bothered her before. I patted her for a bit and then put her next to me. She crawled right back on my chest so I just let her stay there. She shivered some more and then finally stopped. . She’s eight years old. last Time we went to the vet, the vet detected a heart murmur. Otherwise, she’s been very healthy. Has anyone experienced this shaking and shivering with your Maltese?