I gulped some strawberry milkshake down, not realising that there were lumps of like clotted milk in it. I originally thought they were fruit bits until I decided to sieve it! After doing so, I noticed mould on the lumps of milk. Now 3 days on I m suffering with nausea , stomach cramps, headaches, backache , stabbing pains in chest, hot 1min & cold the next! What treatment can I get for this and is it serious?