I'm 26 yr old female heading to Northern Thailand on 18 March, after a week there I plan on going to Pai for a week or so but then after that just have a rough route planned going through Laos for two weeks, Cambodia for 3 weeks, Vietnam for a month until the end of May then flying to Indonesia for a month or so.
It would be great to meet up with fellow solo travellers along the way!! If anyone will be in this part of the world around this time of year and want someone to meet up with for a drink or hike etc. just let me know!
I think I might be in Vietnam at the same sort of time as you. I'm currently planning on getting into Ho Chi Minh around 10 May and making my way up the country by the end of the month. If our plans match up at all, it would be great to try and meet up.