@JoCat I’ll put my holiday chat in here so we don’t hijack the other thread!
I won’t lie, I probably wasn’t as exciting as I probably could have been as I was pretty much sun bed bound till about Wednesday (I had got there Saturday evening).
Travel wise, chatted to a few people on the flight, it wasn’t awkward or anything. I ended up sitting next to a couple, they were super nice and I kept apologising for how sick I was 
I’m genuinely surprised I wasn’t stopped at the airport for the amount of medication I had in my hand luggage. I did end up having to go to a local pharmacy whilst there as I thought I might have to abandon the trip at one point. There’s loads of local doctor’s and the hospital is only about €10 in a taxi away.
I chose a hotel on ‘cardiac hill’, I won’t name it but if you just google that plus Lanzarote there’s a choice of a few. It’s a killer but you’re literally 30 seconds down and you’re right on the strip. For me, somewhere that’s very close to bars/restaurants was ideal. Honestly, Lanzarote is super duper friendly. Restaurants welcome you in with open arms and they’ll never make you feel awkward. I was recognised by 2 that I’d been to back in March with my friends, which was really nice. Clearly made an impression somehow
I’ve flown into Arrecife airport before but honestly it’s really really easy to get around. That and Alicante, I find quite user friendly airports. I had a package deal so got my transfers included and they are SO easy. You get dropped off right outside your hotel. It is easy enough to get a taxi for like €20, but just for this time, I think I just felt safer travelling with a big group and knowing that I’d get dropped off exactly where I’d supposed to end up.
On this occasion, I didn’t do any excursions I won’t lie. But they’re actually pretty easy to organise. Your hotel reception will usually help you or they’ll direct you to somewhere on the strip.
My hotel luckily had a good food selection as some days, I just dragged my butt down to the bar for breakfast, lunch and dinner in between sunbathing, had a few cocktails then collapsed back on my sunbed/inflatable in the pool haha. I think for the first few days, people didn’t really talk to me (and to be honest I didn’t make the effort either), just because I sounded horrific but by about day 4/5ish I’d managed to chat to quite a few people. It was Irish central, I’m pretty sure I was the only Scot there till day 6!
On a day when it was a tad cloudy, I did an early morning walk along the beach then back along the main road. I wasn’t harassed or anything, had an over the shoulder bag and would happily do that by myself again.
Would I do solo next year? Absolutely. I felt confident and honestly just rolling with what I wanted to do was fab. You should definitely try and sort something 
then hopefully planning a wee June trip for next year!
I hope so too as my worst fears are it may never happen or it’ll happen when all my best years are gone and I’m too old to start a family which i really would love