I know many people who have reported experiences highly similar to yours. Those sort of things tend to be very common when a person is starting to make good progress with their Sadhana/Meditation.
It's no good when there are people going around stating these 'siddhis' are nothing more than dream-based hallucinations. For instance one statement from another thread I saw, reads:
If you want to use the powers to fly, you'll have to do so in a lucid dream, as physical reality won't permit you to.
Anyone who has been around the world actively chasing the spiritual life and seeking out actual masters knows this is simply not true. With pure intention, these 'masters' can be located easily. Physical reality is a very strange thing. There are many, if not hundreds+ of Yogis living today capable of Levitation, along with things far beyond what most people would believe possible. In a couple years on my travels I have witnessed and met a total of 4 Yogis living in isolation and away from modernized cities, who have demonstrated remarkable, "Physics defying" abilities. While I can't prove the science behind it, because I simply don't have the understanding, I know the things I have witnessed.... Levitation being among one
unremarkable displays. I don't want to create a bunch of hype around these things, but these abilities exist, quite literally as they are described, which I attest to personally.
Anyone claiming(or pretending) to be an expert on the Siddhis is trying to deceive you. Few, if any self-realized person will brag to you about what they can do. These braggarts you might find online are most likely charlatans trying to create a following. Keep an open mind. There is no need to cultivate disbelief on something you have yet to prove to yourself. I struggle to understand why people feel it necessary to always form an opinion when they lack adequate knowledge/experience on a particular subject. How can an individual, with reasonable thought, declare with confidence the nonexistence nature of something they have never seen - it is the essence of ignorance.