First, I'm sorry you are going through this. Your doctor is wrong.
You are interpreting your results correctly, and a .99 isn't a positive.
How long as it been since your last possible exposure? If it's been at least 12 weeks, I'd call it a negative, since your number actually dropped. If you actually had herpes, it would stay the same or go up.
Your doctor can't tell you that you can't test again. They may not want to order it for you, but you can find another doctor, or if you're in the US, you can test on your own. I'll list sites at the end where you can go to get a test.
Any result under a 3.5 needs to be confirmed. False positives happen because the test looks for things in the blood with similar molecular weights as hsv2 antibodies. It can pick up normal blood proteins that have similar weights, causing a false positive.
Anything under a 3.5 has at least a 50% chance of being a false positive, and the lower the number, the higher the chance of it being false pos. A 1.49 has about an 85% chance of being a false pos.
If it's been less than 12 weeks, test again at 12 weeks. If you are still a low positive, you can get a Western Blot test. You can get that on your own, but it's expensive. We can talk about that when the time comes, if needed.
Oh, and find a new doctor. I understand that docs have to keep up with a lot these days, but if they are going to be diagnosing and treating herpes, they also need to keep up with that, too. We've known for years that there are false positives on the hsv2 IgG. Your doc should, too.
You can go to any of these sites to get your own test:
https://www.stdcheck.com/herpes-1-test.php - can test for just hsv1 or hsv2, or both
https://www.letsgetchecked.com/home-herpes-test/ - must test for hsv1 and hsv2
https://www.healthlabs.com/herpes-tests - can nest for just hsv1 or hsv2, or both
https://www.ultalabtests.com/partners/ultdirect/testing/categories/std/herpes - can nest for just hsv1 or hsv2, or both - do not get the IgM test
All the sites run specials at different times. Google for coupon codes, too.
Keep me posted, okay?