Smooth muscle antibodies.

One of my GP's requested a test for pernicious anemia which came back negative but it has thrown up the fact I have tested positive for smooth muscle antibodies at a titre of 1:160. Three separate blood tests have confirmed this. My liver function tests are normal with just serum albumin coming in slightly below range at 32g/l which was considered satisfactory. Nothing significant has been seen in blood results either. I feel well in myself. The doctor doesn't feel like this is anything to worry about but had requested a liver ultrasound test. I am going out of my mind as to why these antibodies are present. From autoimmune hepatitis to malignancies. The doctor says she doesn't suspect either due to my bloods looking ok and not to worry, it could be due to me having two pregnancies with pre-eclampsia or possible fatty liver, but if a positive asma test is picking up antibodies then surely there's something wrong. I am so so worried it's causing me lack of sleep and constant need to find reassurance. Has anyone else had these antibodies present yet not presented with any symptoms. Can they exist in a healthy person? Non of my other autoimmune profile was positive. Just the asma Thankyou for reading.

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