![]() Please do keep us updated on your progress. I’ve already had to postpone steroid injections in my knees because of it. I too have the worry that false positives will cause me difficulties in the future. My GP and Rheum Nurse don’t know why this is happening either. ![]() The strongest positive I had was one done first thing in the morning after waking. I did the tests without food or drink influence. Long story short over the last week I have had 5 weak positive and 2 strong positive LF tests and 2 negative PCR results. Last week I took another lateral flow test as was feeling a bit under the weather again. GP advised that I probably had COVID (I wasn’t convinced). I eventually tested negative around 4 days later. The following day I received a negative result for the PCR but tested positive twice more on Lateral flows. Later I had a clear positive lateral flow. In June I felt unwell and had a bad headache. I’m so relieved to see this! I have had the exact same thing twice now. Also, my family live abroad and it's possible I could be given a spot check lateral flow at the airport on their side which is quite worrying given I have never produced a negative test using one before. I guess I am just trying to find other people who have had this experience because I find it hard to believe I am the only person out there. However, it is undeniably there at that point which is why I also have to take a follow up PCR. When I say 'during the 30 minute window', I mean that the line does not immediately develop when I do the test - it usually starts to show at about 15 minutes or so. Therefore, day-to-day I am rarely in settings that I would say put me at particularly high risk of catching it. However, these tests have all had false positives (from different batches and my husband uses them with no issues) since my second vaccine and I work from home. I don't think I have had Covid in the past - that said, I accept that I could have been completely asymptomatic. MelissaM1987 in reply to pino99 2 years ago Would love to know if anyone else has had a similar experience and if they received any useful advice yet? I understand false negatives are common but false positives are rare.Ī quick google (although I am mindful that I am not from a medical background) and some information from a registrar at Kings, suggests it could be cross-reactivity of antibodies. I spoke with NRAS, who suggested I reach out on here to see if anyone else has an experience similar. ![]() ![]() My understanding is that PCR is the "gold standard" test and far more accurate, so while I am confident in the result, I am now concerned that something in my body is causing these false positives. However, the PCR tests have consistently come back negative. Of course, I have then routinely booked a PCR for either the same, or next day and isolated before the test and until the result. The test line has appeared faintly in the during of the 30 min test window. I have taken 4 lateral flow tests (3 on the same occasion and 1 on a separate), all of which have come back positive. I am fully vaccinated against Covid-19 after receiving my second Astra-Zeneca vaccine in April 2021. Fortunately, I am in remission and now only take Hydroxychloroquine but have spent a number of years previously on Methotrexate. I am 33 y/o and have CCP-positive Rheumatoid Arthritis. I am new to this forum and have a unique issue which I am hoping someone out there may have experienced too. ![]()
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