Went to rainforest in August and bitten by an insect leaving a large 1 to 2 inch oval flat red rash. Around 3 weeks later become ill with extreme tiredness, dizziness, flu, muscle aches, bone aches, pins and needles etc. Still same after 6 months, rarely well enough to leave house, and just had 2 days of severe chest pains which ive had checked out at A and E. Do you think its worth testing for Lymes? Cancer tests are so far proving negative. Blood tests normal except anaemia and one issue on kidney test.