While many woke up pleasantly surprised by the sunny weather this week, many British people have reported suffering itchy eyes, runny noses and headaches early on in the year.The unseasonably mild weather has brought flowers into full bloom, causing some pollens to be released a full month early.The Met Office usually starts its pollen count around the end of March, but this year they have noticed pollen levels rise weeks earlier.A spokesperson told The Telegraph: “Due to the recent unseasonably mild temperatures and the dry weather, some species of pollen may already be in the atmosphere, so the pollen season may have started a little earlier.”As we go into March, we are likely to see more notable amounts.”Those who suffer particularly badly from hay fever have been advised to start stocking up on medicine now, as the season appears to be beginning.Holly Shaw, a spokesperson for Allergy UK, said: “We have had a very mild winter and that could lend itself to trees releasing pollen early.”If people start to become symptomatic they should start taking their medications early so they will be most effective when the pollen levels really peak.”If they have them already that is great, otherwise talk to a pharmacist who will be able to help.” Want the best of The Telegraph direct to your email and WhatsApp? Sign up to our free twice-daily Front Page newsletter and new audio briefings. Dr Beverley Adams-Groom, a hay fever expert and pollen forecaster at the University of Worcester, said: “There’s two things going on really.”First of all, we’ve had very good weather for the production of pollen in the trees that are currently flowering, like hazel and alder.”To coincide with the readiness of the pollen to fly, we have got really good weather for dispersal: warm and sunny. That’s allowing for the dispersal of the pollen, just at the peak time when it’s ready to fly.” Many have complained on social media of having hay fever symptoms as early as February.Musician Connor Ball from The Vamps wrote that he had seen someone “sneeze seven times”, tweeting: “Omg I’ve just seen a man sneeze 7 times in a row and I thought I had hayfever”.Another Twitter user, Paul, added: “Is it possible to get hay fever in February? Normally suffer in May/June but this is ridiculous.”Chemists have started to place their hay fever medications at the front of the shop, with Superdrug promoting offers on nasal sprays.