Hi all, I'm due to see my rheumatologist soon, would it it be acceptable to ask about a heparin trial because I feel the 300mg. Of aspirin daily is not doing the job anymore, I seem to be getting a lot of headaches/ migraines again. I had a letter after the last bloods were taken 6months ago to say I must take my aspirin regularly as the acl. Antibodies were running high. Look forward to your answers thanks Elfie.